diff --git a/third_party/lua/lapi.c b/third_party/lua/lapi.c
index 0c8f52172..b6916019a 100644
--- a/third_party/lua/lapi.c
+++ b/third_party/lua/lapi.c
@@ -27,6 +27,7 @@
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #define lapi_c
 #define LUA_CORE
+
 #include "third_party/lua/lapi.h"
 #include "third_party/lua/ldebug.h"
 #include "third_party/lua/ldo.h"
@@ -42,6 +43,7 @@
 #include "third_party/lua/lua.h"
 #include "third_party/lua/lundump.h"
 #include "third_party/lua/lvm.h"
+
 // clang-format off
 
 asm(".ident\t\"\\n\\n\
@@ -1524,7 +1526,7 @@ LUA_API int lua_error (lua_State *L) {
   else
     luaG_errormsg(L);  /* raise a regular error */
   /* code unreachable; will unlock when control actually leaves the kernel */
-  __builtin_unreachable();
+  __builtin_unreachable();  // [jart]
 }
 
 
diff --git a/third_party/lua/lapi.h b/third_party/lua/lapi.h
index 0c5d784d7..33ff863f5 100644
--- a/third_party/lua/lapi.h
+++ b/third_party/lua/lapi.h
@@ -4,7 +4,7 @@
 #include "third_party/lua/llimits.h"
 #include "third_party/lua/lstate.h"
 
-/* clang-format off */
+// clang-format off
 
 /* Increments 'L->top', checking for stack overflows */
 #define api_incr_top(L)   {L->top++; api_check(L, L->top <= L->ci->top, \
diff --git a/third_party/lua/lauxlib.c b/third_party/lua/lauxlib.c
index 9014af4ad..5e75a2793 100644
--- a/third_party/lua/lauxlib.c
+++ b/third_party/lua/lauxlib.c
@@ -27,6 +27,7 @@
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #define lauxlib_c
 #define LUA_LIB
+
 #include "libc/calls/calls.h"
 #include "libc/errno.h"
 #include "libc/mem/mem.h"
@@ -34,6 +35,7 @@
 #include "third_party/lua/lauxlib.h"
 #include "third_party/lua/lprefix.h"
 #include "third_party/lua/lua.h"
+
 // clang-format off
 
 asm(".ident\t\"\\n\\n\
diff --git a/third_party/lua/lauxlib.h b/third_party/lua/lauxlib.h
index 6d8d024a9..8ff7b43e0 100644
--- a/third_party/lua/lauxlib.h
+++ b/third_party/lua/lauxlib.h
@@ -1,10 +1,12 @@
 #ifndef lauxlib_h
 #define lauxlib_h
+
 #include "libc/assert.h"
 #include "libc/stdio/stdio.h"
 #include "third_party/lua/lua.h"
 #include "third_party/lua/luaconf.h"
-/* clang-format off */
+
+// clang-format off
 
 /* global table */
 #define LUA_GNAME	"_G"
diff --git a/third_party/lua/lbaselib.c b/third_party/lua/lbaselib.c
index a636184ec..b550dc1b2 100644
--- a/third_party/lua/lbaselib.c
+++ b/third_party/lua/lbaselib.c
@@ -27,12 +27,14 @@
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #define lbaselib_c
 #define LUA_LIB
+
 #include "libc/str/str.h"
 #include "third_party/lua/lauxlib.h"
 #include "third_party/lua/lprefix.h"
 #include "third_party/lua/lua.h"
 #include "third_party/lua/lualib.h"
-/* clang-format off */
+
+// clang-format off
 
 asm(".ident\t\"\\n\\n\
 Lua 5.4.3 (MIT License)\\n\
diff --git a/third_party/lua/lcode.c b/third_party/lua/lcode.c
index 1e54b3f6a..942b061de 100644
--- a/third_party/lua/lcode.c
+++ b/third_party/lua/lcode.c
@@ -27,6 +27,7 @@
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #define lcode_c
 #define LUA_CORE
+
 #include "libc/fmt/conv.h"
 #include "third_party/lua/lcode.h"
 #include "third_party/lua/ldebug.h"
@@ -42,6 +43,7 @@
 #include "third_party/lua/ltable.h"
 #include "third_party/lua/lua.h"
 #include "third_party/lua/lvm.h"
+
 // clang-format off
 
 asm(".ident\t\"\\n\\n\
diff --git a/third_party/lua/lcode.h b/third_party/lua/lcode.h
index fe7da153a..91c13167b 100644
--- a/third_party/lua/lcode.h
+++ b/third_party/lua/lcode.h
@@ -6,7 +6,7 @@
 #include "third_party/lua/lopcodes.h"
 #include "third_party/lua/lparser.h"
 
-/* clang-format off */
+// clang-format off
 
 /*
 ** Marks the end of a patch list. It is an invalid value both as an absolute
diff --git a/third_party/lua/lcorolib.c b/third_party/lua/lcorolib.c
index 6cb615f10..739ad94df 100644
--- a/third_party/lua/lcorolib.c
+++ b/third_party/lua/lcorolib.c
@@ -27,10 +27,12 @@
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #define lcorolib_c
 #define LUA_LIB
+
 #include "third_party/lua/lauxlib.h"
 #include "third_party/lua/lprefix.h"
 #include "third_party/lua/lua.h"
 #include "third_party/lua/lualib.h"
+
 // clang-format off
 
 asm(".ident\t\"\\n\\n\
diff --git a/third_party/lua/lctype.h b/third_party/lua/lctype.h
index 1204fe0d3..e3fe67187 100644
--- a/third_party/lua/lctype.h
+++ b/third_party/lua/lctype.h
@@ -1,7 +1,10 @@
 #ifndef lctype_h
 #define lctype_h
+
 #include "third_party/lua/lua.h"
 
+// clang-format off
+
 /*
 ** In ASCII, this 'ltolower' is correct for alphabetic characters and
 ** for '.'. That is enough for Lua needs. ('check_exp' ensures that
diff --git a/third_party/lua/ldblib.c b/third_party/lua/ldblib.c
index c7060b3eb..3365f4db9 100644
--- a/third_party/lua/ldblib.c
+++ b/third_party/lua/ldblib.c
@@ -27,11 +27,13 @@
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #define ldblib_c
 #define LUA_LIB
+
 #include "libc/str/str.h"
 #include "third_party/lua/lauxlib.h"
 #include "third_party/lua/lprefix.h"
 #include "third_party/lua/lua.h"
 #include "third_party/lua/lualib.h"
+
 // clang-format off
 
 asm(".ident\t\"\\n\\n\
diff --git a/third_party/lua/ldebug.c b/third_party/lua/ldebug.c
index 7917778bc..03cdbe3ff 100644
--- a/third_party/lua/ldebug.c
+++ b/third_party/lua/ldebug.c
@@ -27,6 +27,7 @@
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #define ldebug_c
 #define LUA_CORE
+
 #include "libc/str/str.h"
 #include "third_party/lua/lapi.h"
 #include "third_party/lua/lcode.h"
@@ -42,6 +43,7 @@
 #include "third_party/lua/ltm.h"
 #include "third_party/lua/lua.h"
 #include "third_party/lua/lvm.h"
+
 // clang-format off
 
 asm(".ident\t\"\\n\\n\
diff --git a/third_party/lua/ldebug.h b/third_party/lua/ldebug.h
index fb87123e7..d41dc087a 100644
--- a/third_party/lua/ldebug.h
+++ b/third_party/lua/ldebug.h
@@ -3,8 +3,7 @@
 
 #include "third_party/lua/lstate.h"
 
-/* clang-format off */
-
+// clang-format off
 
 #define pcRel(pc, p)	(cast_int((pc) - (p)->code) - 1)
 
diff --git a/third_party/lua/ldo.c b/third_party/lua/ldo.c
index 0fb2068db..bacfe6058 100644
--- a/third_party/lua/ldo.c
+++ b/third_party/lua/ldo.c
@@ -27,6 +27,7 @@
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #define ldo_c
 #define LUA_CORE
+
 #include "libc/intrin/weaken.h"
 #include "libc/log/log.h"
 #include "libc/mem/gc.h"
@@ -51,6 +52,7 @@
 #include "third_party/lua/lundump.h"
 #include "third_party/lua/lvm.h"
 #include "third_party/lua/lzio.h"
+
 // clang-format off
 
 asm(".ident\t\"\\n\\n\
@@ -87,14 +89,14 @@ asm(".include \"libc/disclaimer.inc\"");
 #elif defined(LUA_USE_POSIX)				/* }{ */
 
 /* in POSIX, try _longjmp/_setjmp (more efficient) */
-#define LUAI_THROW(L,c)		_gclongjmp((c)->b, 1)
+#define LUAI_THROW(L,c)		_gclongjmp((c)->b, 1)  // [jart]
 #define LUAI_TRY(L,c,a)		if (_setjmp((c)->b) == 0) { a }
 #define luai_jmpbuf		jmp_buf
 
 #else							/* }{ */
 
 /* ISO C handling with long jumps */
-#define LUAI_THROW(L,c)		_gclongjmp((c)->b, 1)
+#define LUAI_THROW(L,c)		_gclongjmp((c)->b, 1)  // [jart]
 #define LUAI_TRY(L,c,a)		if (setjmp((c)->b) == 0) { a }
 #define luai_jmpbuf		jmp_buf
 
@@ -153,7 +155,7 @@ l_noret luaD_throw (lua_State *L, int errcode) {
         lua_unlock(L);
         g->panic(L);  /* call panic function (last chance to jump out) */
       }
-      if (_weaken(__die)) _weaken(__die)();
+      if (_weaken(__die)) _weaken(__die)();  // [jart]
       _Exitr(41);
     }
   }
diff --git a/third_party/lua/ldo.h b/third_party/lua/ldo.h
index 5a5bff6a8..873db6fdf 100644
--- a/third_party/lua/ldo.h
+++ b/third_party/lua/ldo.h
@@ -5,7 +5,7 @@
 #include "third_party/lua/lstate.h"
 #include "third_party/lua/lzio.h"
 
-/* clang-format off */
+// clang-format off
 
 /*
 ** Macro to check stack size and grow stack if needed.  Parameters
diff --git a/third_party/lua/ldump.c b/third_party/lua/ldump.c
index 05c2c1cab..2bc9ba025 100644
--- a/third_party/lua/ldump.c
+++ b/third_party/lua/ldump.c
@@ -27,11 +27,13 @@
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #define ldump_c
 #define LUA_CORE
+
 #include "third_party/lua/lobject.h"
 #include "third_party/lua/lprefix.h"
 #include "third_party/lua/lstate.h"
 #include "third_party/lua/lua.h"
 #include "third_party/lua/lundump.h"
+
 // clang-format off
 
 asm(".ident\t\"\\n\\n\
diff --git a/third_party/lua/lfunc.c b/third_party/lua/lfunc.c
index cedce1480..dfa340838 100644
--- a/third_party/lua/lfunc.c
+++ b/third_party/lua/lfunc.c
@@ -27,6 +27,7 @@
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #define lfunc_c
 #define LUA_CORE
+
 #include "third_party/lua/ldebug.h"
 #include "third_party/lua/ldo.h"
 #include "third_party/lua/lfunc.h"
@@ -37,6 +38,7 @@
 #include "third_party/lua/lstate.h"
 #include "third_party/lua/ltm.h"
 #include "third_party/lua/lua.h"
+
 // clang-format off
 
 asm(".ident\t\"\\n\\n\
diff --git a/third_party/lua/lfunc.h b/third_party/lua/lfunc.h
index 4f15eb98b..5a5ff21cf 100644
--- a/third_party/lua/lfunc.h
+++ b/third_party/lua/lfunc.h
@@ -3,7 +3,7 @@
 
 #include "third_party/lua/lobject.h"
 
-/* clang-format off */
+// clang-format off
 
 #define sizeCclosure(n)	(cast_int(offsetof(CClosure, upvalue)) + \
                          cast_int(sizeof(TValue)) * (n))
diff --git a/third_party/lua/lgc.c b/third_party/lua/lgc.c
index 5e5b5e8e7..ac8fafe66 100644
--- a/third_party/lua/lgc.c
+++ b/third_party/lua/lgc.c
@@ -27,6 +27,7 @@
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #define lgc_c
 #define LUA_CORE
+
 #include "libc/str/str.h"
 #include "third_party/lua/ldebug.h"
 #include "third_party/lua/ldo.h"
@@ -40,6 +41,7 @@
 #include "third_party/lua/ltable.h"
 #include "third_party/lua/ltm.h"
 #include "third_party/lua/lua.h"
+
 // clang-format off
 
 asm(".ident\t\"\\n\\n\
diff --git a/third_party/lua/lgc.h b/third_party/lua/lgc.h
index efe88f329..52a09a675 100644
--- a/third_party/lua/lgc.h
+++ b/third_party/lua/lgc.h
@@ -4,7 +4,7 @@
 #include "third_party/lua/lobject.h"
 #include "third_party/lua/lstate.h"
 
-/* clang-format off */
+// clang-format off
 
 /*
 ** Collectable objects may have one of three colors: white, which means
diff --git a/third_party/lua/linit.c b/third_party/lua/linit.c
index f64dd1327..c28832b97 100644
--- a/third_party/lua/linit.c
+++ b/third_party/lua/linit.c
@@ -27,6 +27,7 @@
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #define linit_c
 #define LUA_LIB
+
 /*
 ** If you embed Lua in your program and need to open the standard
 ** libraries, call luaL_openlibs in your program. If you need a
@@ -42,10 +43,12 @@
 **  lua_setfield(L, -2, modname);
 **  lua_pop(L, 1);  // remove PRELOAD table
 */
+
 #include "third_party/lua/lauxlib.h"
 #include "third_party/lua/lprefix.h"
 #include "third_party/lua/lua.h"
 #include "third_party/lua/lualib.h"
+
 // clang-format off
 
 asm(".ident\t\"\\n\\n\
diff --git a/third_party/lua/liolib.c b/third_party/lua/liolib.c
index 6eced3349..9c925f7f4 100644
--- a/third_party/lua/liolib.c
+++ b/third_party/lua/liolib.c
@@ -27,6 +27,7 @@
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #define liolib_c
 #define LUA_LIB
+
 #include "libc/calls/calls.h"
 #include "libc/calls/weirdtypes.h"
 #include "libc/errno.h"
@@ -38,6 +39,7 @@
 #include "third_party/lua/lprefix.h"
 #include "third_party/lua/lua.h"
 #include "third_party/lua/lualib.h"
+
 // clang-format off
 
 asm(".ident\t\"\\n\\n\
diff --git a/third_party/lua/ljumptab.inc b/third_party/lua/ljumptab.inc
index f928a406b..6407c0b20 100644
--- a/third_party/lua/ljumptab.inc
+++ b/third_party/lua/ljumptab.inc
@@ -1,9 +1,3 @@
-/*
-** $Id: ljumptab.h $
-** Jump Table for the Lua interpreter
-** See Copyright Notice in lua.h
-*/
-
 #undef vmdispatch
 #undef vmcase
 #undef vmbreak
diff --git a/third_party/lua/llex.c b/third_party/lua/llex.c
index 7907a089b..df3b8cb07 100644
--- a/third_party/lua/llex.c
+++ b/third_party/lua/llex.c
@@ -27,6 +27,7 @@
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #define llex_c
 #define LUA_CORE
+
 #include "third_party/lua/llex.h"
 #include "third_party/lua/lctype.h"
 #include "third_party/lua/ldebug.h"
@@ -40,6 +41,7 @@
 #include "third_party/lua/ltable.h"
 #include "third_party/lua/lua.h"
 #include "third_party/lua/lzio.h"
+
 // clang-format off
 
 asm(".ident\t\"\\n\\n\
@@ -413,9 +415,9 @@ static void read_string (LexState *ls, int del, SemInfo *seminfo) {
         int c;  /* final character to be saved */
         save_and_next(ls);  /* keep '\\' for error messages */
         switch (ls->current) {
-          case 'e': c = '\e'; goto read_save;
           case 'a': c = '\a'; goto read_save;
           case 'b': c = '\b'; goto read_save;
+          case 'e': c = '\e'; goto read_save;  // [jart]
           case 'f': c = '\f'; goto read_save;
           case 'n': c = '\n'; goto read_save;
           case 'r': c = '\r'; goto read_save;
diff --git a/third_party/lua/llex.h b/third_party/lua/llex.h
index ae20dc87f..2efb85728 100644
--- a/third_party/lua/llex.h
+++ b/third_party/lua/llex.h
@@ -1,16 +1,10 @@
-/*
-** $Id: llex.h $
-** Lexical Analyzer
-** See Copyright Notice in lua.h
-*/
-
 #ifndef llex_h
 #define llex_h
 
 #include "third_party/lua/lobject.h"
 #include "third_party/lua/lzio.h"
 
-/* clang-format off */
+// clang-format off
 
 /*
 ** Single-char tokens (terminal symbols) are represented by their own
diff --git a/third_party/lua/llimits.h b/third_party/lua/llimits.h
index 03c2fd812..f7c66a9df 100644
--- a/third_party/lua/llimits.h
+++ b/third_party/lua/llimits.h
@@ -5,7 +5,7 @@
 #include "libc/math.h"
 #include "third_party/lua/lua.h"
 
-/* clang-format off */
+// clang-format off
 
 /*
 ** 'lu_mem' and 'l_mem' are unsigned/signed integers big enough to count
diff --git a/third_party/lua/lmathlib.c b/third_party/lua/lmathlib.c
index 59e4bb51b..187720c0b 100644
--- a/third_party/lua/lmathlib.c
+++ b/third_party/lua/lmathlib.c
@@ -27,6 +27,7 @@
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #define lmathlib_c
 #define LUA_LIB
+
 #include "libc/calls/calls.h"
 #include "libc/math.h"
 #include "libc/nt/struct/msg.h"
@@ -34,6 +35,7 @@
 #include "third_party/lua/lprefix.h"
 #include "third_party/lua/lua.h"
 #include "third_party/lua/lualib.h"
+
 // clang-format off
 
 asm(".ident\t\"\\n\\n\
diff --git a/third_party/lua/lmem.c b/third_party/lua/lmem.c
index 8025eab7c..0f1c832ec 100644
--- a/third_party/lua/lmem.c
+++ b/third_party/lua/lmem.c
@@ -27,6 +27,7 @@
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #define lmem_c
 #define LUA_CORE
+
 #include "libc/log/log.h"
 #include "third_party/lua/ldebug.h"
 #include "third_party/lua/ldo.h"
@@ -36,6 +37,7 @@
 #include "third_party/lua/lprefix.h"
 #include "third_party/lua/lstate.h"
 #include "third_party/lua/lua.h"
+
 // clang-format off
 
 asm(".ident\t\"\\n\\n\
@@ -171,7 +173,7 @@ static void *tryagain (lua_State *L, void *block,
                        size_t osize, size_t nsize) {
   global_State *g = G(L);
   if (completestate(g) && !g->gcstopem) {
-    WARNF("reacting to malloc() failure by running lua garbage collector...");
+    WARNF("reacting to malloc() failure by running lua garbage collector...");  // [jart]
     luaC_fullgc(L, 1);  /* try to free some memory... */
     return (*g->frealloc)(g->ud, block, osize, nsize);  /* try again */
   }
diff --git a/third_party/lua/lmem.h b/third_party/lua/lmem.h
index e3b4f4d01..61689af7f 100644
--- a/third_party/lua/lmem.h
+++ b/third_party/lua/lmem.h
@@ -4,7 +4,7 @@
 #include "third_party/lua/llimits.h"
 #include "third_party/lua/lua.h"
 
-/* clang-format off */
+// clang-format off
 
 #define luaM_error(L)	luaD_throw(L, LUA_ERRMEM)
 
diff --git a/third_party/lua/loadlib.c b/third_party/lua/loadlib.c
index 09f9d4736..9a5a82777 100644
--- a/third_party/lua/loadlib.c
+++ b/third_party/lua/loadlib.c
@@ -27,12 +27,14 @@
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #define loadlib_c
 #define LUA_LIB
+
 #include "libc/runtime/runtime.h"
 #include "libc/str/str.h"
 #include "third_party/lua/lauxlib.h"
 #include "third_party/lua/lprefix.h"
 #include "third_party/lua/lua.h"
 #include "third_party/lua/lualib.h"
+
 // clang-format off
 
 asm(".ident\t\"\\n\\n\
@@ -40,14 +42,16 @@ Lua 5.4.3 (MIT License)\\n\
 Copyright 1994–2021 Lua.org, PUC-Rio.\"");
 asm(".include \"libc/disclaimer.inc\"");
 
+
 /*
-** This module contains an implementation of loadlib for Unix systems
+**
+** [jart] This module contains an implementation of loadlib for Unix systems
 ** that have dlfcn, an implementation for Windows, and a stub for other
 ** systems.
 */
 
 
-const char *g_lua_path_default = LUA_PATH_DEFAULT;
+const char *g_lua_path_default = LUA_PATH_DEFAULT;  // [jart]
 
 
 /*
@@ -761,7 +765,7 @@ static void createclibstable (lua_State *L) {
 
 
 static const char *GetLuaPathDefault(void) {
-  return g_lua_path_default;
+  return g_lua_path_default;  // [jart]
 }
 
 
diff --git a/third_party/lua/lobject.c b/third_party/lua/lobject.c
index 4e0b2d6af..5f8ea2f23 100644
--- a/third_party/lua/lobject.c
+++ b/third_party/lua/lobject.c
@@ -27,6 +27,7 @@
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #define lobject_c
 #define LUA_CORE
+
 #include "libc/str/str.h"
 #include "third_party/lua/lctype.h"
 #include "third_party/lua/ldebug.h"
@@ -38,6 +39,7 @@
 #include "third_party/lua/lstring.h"
 #include "third_party/lua/lua.h"
 #include "third_party/lua/lvm.h"
+
 // clang-format off
 
 asm(".ident\t\"\\n\\n\
@@ -46,6 +48,12 @@ Copyright 1994–2021 Lua.org, PUC-Rio.\"");
 asm(".include \"libc/disclaimer.inc\"");
 
 
+/*
+** Computes ceil(log2(x))
+*/
+// [jart] moved to lobject.h
+
+
 static lua_Integer intarith (lua_State *L, int op, lua_Integer v1,
                                                    lua_Integer v2) {
   switch (op) {
@@ -267,9 +275,9 @@ static const char *l_str2d (const char *s, lua_Number *result) {
 
 
 #define MAXBY10		cast(lua_Unsigned, LUA_MAXINTEGER / 10)
-#define MAXBY8		cast(lua_Unsigned, LUA_MAXINTEGER / 8)
+#define MAXBY8		cast(lua_Unsigned, LUA_MAXINTEGER / 8)  // [jart]
 #define MAXLASTD	cast_int(LUA_MAXINTEGER % 10)
-#define MAXLASTD8	cast_int(LUA_MAXINTEGER % 8)
+#define MAXLASTD8	cast_int(LUA_MAXINTEGER % 8)  // [jart]
 
 static const char *l_str2int (const char *s, lua_Integer *result) {
   lua_Unsigned a = 0;
diff --git a/third_party/lua/lobject.h b/third_party/lua/lobject.h
index af5c03956..b3396fb56 100644
--- a/third_party/lua/lobject.h
+++ b/third_party/lua/lobject.h
@@ -5,7 +5,7 @@
 #include "third_party/lua/llimits.h"
 #include "third_party/lua/lua.h"
 
-/* clang-format off */
+// clang-format off
 
 /*
 ** Extra types for collectable non-values
@@ -786,7 +786,7 @@ LUAI_FUNC void luaO_chunkid (char *out, const char *source, size_t srclen);
 ** Computes ceil(log2(x))
 */
 static inline int luaO_ceillog2 (unsigned int x) {
-  return --x ? _bsr(x) + 1 : 0;
+  return --x ? _bsr(x) + 1 : 0;  // [jart]
 }
 
 #endif
diff --git a/third_party/lua/lopcodes.c b/third_party/lua/lopcodes.c
index 9af17c352..649ea2fa7 100644
--- a/third_party/lua/lopcodes.c
+++ b/third_party/lua/lopcodes.c
@@ -27,8 +27,10 @@
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #define lopcodes_c
 #define LUA_CORE
+
 #include "third_party/lua/lopcodes.h"
 #include "third_party/lua/lprefix.h"
+
 // clang-format off
 
 asm(".ident\t\"\\n\\n\
diff --git a/third_party/lua/lopcodes.h b/third_party/lua/lopcodes.h
index 7ae716b85..39f726fc7 100644
--- a/third_party/lua/lopcodes.h
+++ b/third_party/lua/lopcodes.h
@@ -3,7 +3,7 @@
 
 #include "third_party/lua/llimits.h"
 
-/* clang-format off */
+// clang-format off
 
 /*===========================================================================
   We assume that instructions are unsigned 32-bit integers.
diff --git a/third_party/lua/lopnames.inc b/third_party/lua/lopnames.h
similarity index 90%
rename from third_party/lua/lopnames.inc
rename to third_party/lua/lopnames.h
index 2ed5a34db..27104d25a 100644
--- a/third_party/lua/lopnames.inc
+++ b/third_party/lua/lopnames.h
@@ -1,13 +1,7 @@
-/*
-** $Id: lopnames.h $
-** Opcode names
-** See Copyright Notice in lua.h
-*/
-
-#if !defined(lopnames_h)
+#ifndef lopnames_h
 #define lopnames_h
 
-
+// clang-format off
 
 /* ORDER OP */
 
diff --git a/third_party/lua/loslib.c b/third_party/lua/loslib.c
index 71ea84c8b..8635d0162 100644
--- a/third_party/lua/loslib.c
+++ b/third_party/lua/loslib.c
@@ -27,6 +27,7 @@
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #define loslib_c
 #define LUA_LIB
+
 #include "libc/calls/calls.h"
 #include "libc/calls/weirdtypes.h"
 #include "libc/errno.h"
@@ -41,6 +42,7 @@
 #include "third_party/lua/lprefix.h"
 #include "third_party/lua/lua.h"
 #include "third_party/lua/lualib.h"
+
 // clang-format off
 
 asm(".ident\t\"\\n\\n\
@@ -142,7 +144,7 @@ asm(".include \"libc/disclaimer.inc\"");
 #define LUA_TMPNAMBUFSIZE	32
 
 #define lua_tmpnam(b,e) { \
-        strcpy(b, kTmpPath); \
+        strcpy(b, kTmpPath); \  // [jart]
         strcat(b, "lua_XXXXXX"); \
         e = mkstemp(b); \
         if (e != -1) close(e); \
diff --git a/third_party/lua/lparser.c b/third_party/lua/lparser.c
index a8a0689ad..4f2bc77df 100644
--- a/third_party/lua/lparser.c
+++ b/third_party/lua/lparser.c
@@ -27,6 +27,7 @@
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #define lparser_c
 #define LUA_CORE
+
 #include "libc/str/str.h"
 #include "third_party/lua/lcode.h"
 #include "third_party/lua/ldebug.h"
@@ -42,6 +43,7 @@
 #include "third_party/lua/lstring.h"
 #include "third_party/lua/ltable.h"
 #include "third_party/lua/lua.h"
+
 // clang-format off
 
 asm(".ident\t\"\\n\\n\
diff --git a/third_party/lua/lparser.h b/third_party/lua/lparser.h
index 96ad3bc31..69455eb80 100644
--- a/third_party/lua/lparser.h
+++ b/third_party/lua/lparser.h
@@ -5,7 +5,7 @@
 #include "third_party/lua/lobject.h"
 #include "third_party/lua/lzio.h"
 
-/* clang-format off */
+// clang-format off
 
 /*
 ** Expression and variable descriptor.
diff --git a/third_party/lua/lprefix.h b/third_party/lua/lprefix.h
index 373580fe4..7d76a1067 100644
--- a/third_party/lua/lprefix.h
+++ b/third_party/lua/lprefix.h
@@ -1,6 +1,8 @@
 #ifndef lprefix_h
 #define lprefix_h
 
+// clang-format off
+
 /*
 ** Allows POSIX/XSI stuff
 */
diff --git a/third_party/lua/lstate.c b/third_party/lua/lstate.c
index b136094ec..bd64619b8 100644
--- a/third_party/lua/lstate.c
+++ b/third_party/lua/lstate.c
@@ -27,6 +27,7 @@
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #define lstate_c
 #define LUA_CORE
+
 #include "libc/str/str.h"
 #include "libc/time/time.h"
 #include "third_party/lua/lapi.h"
@@ -42,6 +43,7 @@
 #include "third_party/lua/ltable.h"
 #include "third_party/lua/ltm.h"
 #include "third_party/lua/lua.h"
+
 // clang-format off
 
 asm(".ident\t\"\\n\\n\
diff --git a/third_party/lua/lstate.h b/third_party/lua/lstate.h
index b0b7cd17f..cd54d8a96 100644
--- a/third_party/lua/lstate.h
+++ b/third_party/lua/lstate.h
@@ -7,7 +7,7 @@
 #include "third_party/lua/lzio.h"
 #include "third_party/lua/tms.h"
 
-/* clang-format off */
+// clang-format off
 
 /*
 ** Some notes about garbage-collected objects: All objects in Lua must
diff --git a/third_party/lua/lstring.c b/third_party/lua/lstring.c
index ec4e500bd..ae80c9b9d 100644
--- a/third_party/lua/lstring.c
+++ b/third_party/lua/lstring.c
@@ -27,6 +27,7 @@
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #define lstring_c
 #define LUA_CORE
+
 #include "libc/str/str.h"
 #include "third_party/lua/ldebug.h"
 #include "third_party/lua/ldo.h"
@@ -36,6 +37,7 @@
 #include "third_party/lua/lstate.h"
 #include "third_party/lua/lstring.h"
 #include "third_party/lua/lua.h"
+
 // clang-format off
 
 asm(".ident\t\"\\n\\n\
diff --git a/third_party/lua/lstring.h b/third_party/lua/lstring.h
index d9cd11ada..347ef4cd0 100644
--- a/third_party/lua/lstring.h
+++ b/third_party/lua/lstring.h
@@ -5,7 +5,7 @@
 #include "third_party/lua/lobject.h"
 #include "third_party/lua/lstate.h"
 
-/* clang-format off */
+// clang-format off
 
 /*
 ** Memory-allocation error message must be preallocated (it cannot
diff --git a/third_party/lua/lstrlib.c b/third_party/lua/lstrlib.c
index 906b46a3a..462fc6b11 100644
--- a/third_party/lua/lstrlib.c
+++ b/third_party/lua/lstrlib.c
@@ -27,6 +27,7 @@
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #define lstrlib_c
 #define LUA_LIB
+
 #include "libc/math.h"
 #include "libc/str/str.h"
 #include "third_party/lua/cosmo.h"
@@ -34,6 +35,7 @@
 #include "third_party/lua/lprefix.h"
 #include "third_party/lua/lua.h"
 #include "third_party/lua/lualib.h"
+
 // clang-format off
 
 asm(".ident\t\"\\n\\n\
@@ -67,7 +69,7 @@ asm(".include \"libc/disclaimer.inc\"");
 
 
 
-static int str_format(lua_State *);
+static int str_format(lua_State *);  // [jart]
 
 
 static int str_len (lua_State *L) {
diff --git a/third_party/lua/ltable.c b/third_party/lua/ltable.c
index a5bf84153..740dcd8f2 100644
--- a/third_party/lua/ltable.c
+++ b/third_party/lua/ltable.c
@@ -27,6 +27,7 @@
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #define ltable_c
 #define LUA_CORE
+
 #include "third_party/lua/ldebug.h"
 #include "third_party/lua/ldo.h"
 #include "third_party/lua/lgc.h"
@@ -38,6 +39,7 @@
 #include "third_party/lua/ltable.h"
 #include "third_party/lua/lua.h"
 #include "third_party/lua/lvm.h"
+
 // clang-format off
 
 asm(".ident\t\"\\n\\n\
diff --git a/third_party/lua/ltable.h b/third_party/lua/ltable.h
index 7b4014e14..8aab0dfd6 100644
--- a/third_party/lua/ltable.h
+++ b/third_party/lua/ltable.h
@@ -3,7 +3,7 @@
 
 #include "third_party/lua/lobject.h"
 
-/* clang-format off */
+// clang-format off
 
 #define gnode(t,i)	(&(t)->node[i])
 #define gval(n)		(&(n)->i_val)
diff --git a/third_party/lua/ltablib.c b/third_party/lua/ltablib.c
index 4ed8f478e..6315a65c9 100644
--- a/third_party/lua/ltablib.c
+++ b/third_party/lua/ltablib.c
@@ -27,6 +27,7 @@
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #define ltablib_c
 #define LUA_LIB
+
 #include "libc/calls/calls.h"
 #include "libc/calls/weirdtypes.h"
 #include "libc/str/str.h"
@@ -34,6 +35,7 @@
 #include "third_party/lua/lprefix.h"
 #include "third_party/lua/lua.h"
 #include "third_party/lua/lualib.h"
+
 // clang-format off
 
 asm(".ident\t\"\\n\\n\
diff --git a/third_party/lua/ltests.c b/third_party/lua/ltests.c
index f0cf71020..284464bac 100644
--- a/third_party/lua/ltests.c
+++ b/third_party/lua/ltests.c
@@ -27,6 +27,7 @@
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #define ltests_c
 #define LUA_CORE
+
 #include "third_party/lua/lapi.h"
 #include "third_party/lua/lauxlib.h"
 #include "third_party/lua/lcode.h"
@@ -36,13 +37,14 @@
 #include "third_party/lua/lfunc.h"
 #include "third_party/lua/lmem.h"
 #include "third_party/lua/lopcodes.h"
-#include "third_party/lua/lopnames.inc"
+#include "third_party/lua/lopnames.h"
 #include "third_party/lua/lprefix.h"
 #include "third_party/lua/lstate.h"
 #include "third_party/lua/lstring.h"
 #include "third_party/lua/ltable.h"
 #include "third_party/lua/lua.h"
 #include "third_party/lua/lualib.h"
+
 // clang-format off
 
 asm(".ident\t\"\\n\\n\
@@ -1263,7 +1265,7 @@ static int panicback (lua_State *L) {
   b = (struct Aux *)lua_touserdata(L, -1);
   lua_pop(L, 1);  /* remove 'Aux' struct */
   runC(b->L, L, b->paniccode);  /* run optional panic code */
-  _gclongjmp(b->jb, 1);
+  _gclongjmp(b->jb, 1);  // [jart]
   return 1;  /* to avoid warnings */
 }
 
@@ -1724,7 +1726,7 @@ static int runC (lua_State *L, lua_State *L1, const char *pc) {
       lua_error(L1);
     }
     else if EQ("abort") {
-      __die();
+      __die();  // [jart]
     }
     else if EQ("throw") {
 #if defined(__cplusplus)
diff --git a/third_party/lua/ltests.h b/third_party/lua/ltests.h
index 20fe75070..f80091d51 100644
--- a/third_party/lua/ltests.h
+++ b/third_party/lua/ltests.h
@@ -1,8 +1,9 @@
 #ifndef ltests_h
 #define ltests_h
+
 #include "third_party/lua/lua.h"
 
-/* clang-format off */
+// clang-format off
 
 /* test Lua with compatibility code */
 #define LUA_COMPAT_MATHLIB
diff --git a/third_party/lua/ltm.c b/third_party/lua/ltm.c
index 25becb214..ab0aad6ee 100644
--- a/third_party/lua/ltm.c
+++ b/third_party/lua/ltm.c
@@ -27,6 +27,7 @@
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #define ltm_c
 #define LUA_CORE
+
 #include "third_party/lua/ldebug.h"
 #include "third_party/lua/ldo.h"
 #include "third_party/lua/lgc.h"
@@ -38,6 +39,7 @@
 #include "third_party/lua/ltm.h"
 #include "third_party/lua/lua.h"
 #include "third_party/lua/lvm.h"
+
 // clang-format off
 
 asm(".ident\t\"\\n\\n\
diff --git a/third_party/lua/ltm.h b/third_party/lua/ltm.h
index 0bc15fddf..fc89b6f78 100644
--- a/third_party/lua/ltm.h
+++ b/third_party/lua/ltm.h
@@ -1,9 +1,17 @@
 #ifndef ltm_h
 #define ltm_h
+
 #include "third_party/lua/lobject.h"
 #include "third_party/lua/luaconf.h"
 #include "third_party/lua/tms.h"
-/* clang-format off */
+
+// clang-format off
+
+/*
+* WARNING: if you change the order of this enumeration,
+* grep "ORDER TM" and "ORDER OP"
+*/
+// [jart] moved to tms.h
 
 /*
 ** Mask with 1 in all fast-access methods. A 1 in any of these bits
diff --git a/third_party/lua/lua.h b/third_party/lua/lua.h
index 4e9b825f2..681154720 100644
--- a/third_party/lua/lua.h
+++ b/third_party/lua/lua.h
@@ -1,9 +1,12 @@
 #ifndef COSMOPOLITAN_THIRD_PARTY_LUA_LUA_H_
 #define COSMOPOLITAN_THIRD_PARTY_LUA_LUA_H_
+
 #include "third_party/lua/luaconf.h"
+
 #if !(__ASSEMBLER__ + __LINKER__ + 0)
 COSMOPOLITAN_C_START_
-/* clang-format off */
+
+// clang-format off
 
 #define LUA_VERSION_MAJOR	"5"
 #define LUA_VERSION_MINOR	"4"
@@ -479,8 +482,9 @@ struct lua_Debug {
 
 /* }====================================================================== */
 
-extern const char *g_lua_path_default;
+extern const char *g_lua_path_default;  // [jart]
 
 COSMOPOLITAN_C_END_
+
 #endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
 #endif /* COSMOPOLITAN_THIRD_PARTY_LUA_LUA_H_ */
diff --git a/third_party/lua/lua.main.c b/third_party/lua/lua.main.c
index 8a0f05434..54af3280b 100644
--- a/third_party/lua/lua.main.c
+++ b/third_party/lua/lua.main.c
@@ -26,6 +26,7 @@
 │                                                                              │
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #define lua_c
+
 #include "third_party/lua/lua.h"
 #include "libc/calls/calls.h"
 #include "libc/calls/struct/sigaction.h"
@@ -50,6 +51,7 @@
 #include "third_party/lua/lualib.h"
 #include "third_party/lua/lunix.h"
 #include "tool/args/args.h"
+
 // clang-format off
 
 asm(".ident\t\"\\n\\n\
@@ -57,6 +59,7 @@ Lua 5.4.3 (MIT License)\\n\
 Copyright 1994–2021 Lua.org, PUC-Rio.\"");
 asm(".include \"libc/disclaimer.inc\"");
 
+
 STATIC_STACK_SIZE(0x80000);
 
 #if !defined(LUA_PROGNAME)
diff --git a/third_party/lua/luac.main.c b/third_party/lua/luac.main.c
index c002daf1d..df3fede39 100644
--- a/third_party/lua/luac.main.c
+++ b/third_party/lua/luac.main.c
@@ -27,6 +27,7 @@
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #define luac_c
 #define LUA_CORE
+
 #include "libc/calls/calls.h"
 #include "libc/calls/struct/sigaction.h"
 #include "libc/errno.h"
@@ -37,12 +38,13 @@
 #include "third_party/lua/ldebug.h"
 #include "third_party/lua/lobject.h"
 #include "third_party/lua/lopcodes.h"
-#include "third_party/lua/lopnames.inc"
+#include "third_party/lua/lopnames.h"
 #include "third_party/lua/lprefix.h"
 #include "third_party/lua/lstate.h"
 #include "third_party/lua/lua.h"
 #include "third_party/lua/lualib.h"
 #include "third_party/lua/lundump.h"
+
 // clang-format off
 
 asm(".ident\t\"\\n\\n\
diff --git a/third_party/lua/luaconf.h b/third_party/lua/luaconf.h
index 74ef92328..2424acce1 100644
--- a/third_party/lua/luaconf.h
+++ b/third_party/lua/luaconf.h
@@ -1,5 +1,6 @@
 #ifndef luaconf_h
 #define luaconf_h
+
 #include "libc/assert.h"
 #include "libc/dce.h"
 #include "libc/fmt/conv.h"
@@ -7,10 +8,10 @@
 #include "libc/limits.h"
 #include "libc/str/unicode.h"
 
-#define LUA_USE_POSIX
-#define LUA_USE_LINENOISE
+// clang-format off
 
-/* clang-format off */
+#define LUA_USE_LINENOISE
+#define LUA_USE_POSIX
 
 /*
 ** ===================================================================
diff --git a/third_party/lua/lualib.h b/third_party/lua/lualib.h
index 47dfc39e3..6120c52e0 100644
--- a/third_party/lua/lualib.h
+++ b/third_party/lua/lualib.h
@@ -1,8 +1,9 @@
 #ifndef lualib_h
 #define lualib_h
+
 #include "third_party/lua/lua.h"
 
-/* clang-format off */
+// clang-format off
 
 /* version suffix for environment variable names */
 #define LUA_VERSUFFIX          "_" LUA_VERSION_MAJOR "_" LUA_VERSION_MINOR
diff --git a/third_party/lua/lundump.c b/third_party/lua/lundump.c
index beb991090..118ca51c7 100644
--- a/third_party/lua/lundump.c
+++ b/third_party/lua/lundump.c
@@ -1,9 +1,30 @@
-/*
-** $Id: lundump.c $
-** load precompiled Lua chunks
-** See Copyright Notice in lua.h
-*/
-
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8                                :vi│
+╚──────────────────────────────────────────────────────────────────────────────╝
+│                                                                              │
+│  Lua                                                                         │
+│  Copyright © 2004-2021 Lua.org, PUC-Rio.                                     │
+│                                                                              │
+│  Permission is hereby granted, free of charge, to any person obtaining       │
+│  a copy of this software and associated documentation files (the             │
+│  "Software"), to deal in the Software without restriction, including         │
+│  without limitation the rights to use, copy, modify, merge, publish,         │
+│  distribute, sublicense, and/or sell copies of the Software, and to          │
+│  permit persons to whom the Software is furnished to do so, subject to       │
+│  the following conditions:                                                   │
+│                                                                              │
+│  The above copyright notice and this permission notice shall be              │
+│  included in all copies or substantial portions of the Software.             │
+│                                                                              │
+│  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,             │
+│  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF          │
+│  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.      │
+│  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY        │
+│  CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,        │
+│  TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE           │
+│  SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                      │
+│                                                                              │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #define lundump_c
 #define LUA_CORE
 
@@ -19,7 +40,13 @@
 #include "third_party/lua/lundump.h"
 #include "third_party/lua/lzio.h"
 
-/* clang-format off */
+// clang-format off
+
+asm(".ident\t\"\\n\\n\
+Lua 5.4.3 (MIT License)\\n\
+Copyright 1994–2021 Lua.org, PUC-Rio.\"");
+asm(".include \"libc/disclaimer.inc\"");
+
 
 #if !defined(luai_verifycode)
 #define luai_verifycode(L,f)  /* empty */
diff --git a/third_party/lua/lundump.h b/third_party/lua/lundump.h
index 84fa58ab3..6bf71979c 100644
--- a/third_party/lua/lundump.h
+++ b/third_party/lua/lundump.h
@@ -1,10 +1,11 @@
 #ifndef lundump_h
 #define lundump_h
+
 #include "third_party/lua/llimits.h"
 #include "third_party/lua/lobject.h"
 #include "third_party/lua/lzio.h"
 
-/* clang-format off */
+// clang-format off
 
 /* data to catch conversion errors */
 #define LUAC_DATA	"\x19\x93\r\n\x1a\n"
diff --git a/third_party/lua/lutf8lib.c b/third_party/lua/lutf8lib.c
index 670108b37..3496960bd 100644
--- a/third_party/lua/lutf8lib.c
+++ b/third_party/lua/lutf8lib.c
@@ -1,9 +1,30 @@
-/*
-** $Id: lutf8lib.c $
-** Standard library for UTF-8 manipulation
-** See Copyright Notice in lua.h
-*/
-
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8                                :vi│
+╚──────────────────────────────────────────────────────────────────────────────╝
+│                                                                              │
+│  Lua                                                                         │
+│  Copyright © 2004-2021 Lua.org, PUC-Rio.                                     │
+│                                                                              │
+│  Permission is hereby granted, free of charge, to any person obtaining       │
+│  a copy of this software and associated documentation files (the             │
+│  "Software"), to deal in the Software without restriction, including         │
+│  without limitation the rights to use, copy, modify, merge, publish,         │
+│  distribute, sublicense, and/or sell copies of the Software, and to          │
+│  permit persons to whom the Software is furnished to do so, subject to       │
+│  the following conditions:                                                   │
+│                                                                              │
+│  The above copyright notice and this permission notice shall be              │
+│  included in all copies or substantial portions of the Software.             │
+│                                                                              │
+│  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,             │
+│  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF          │
+│  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.      │
+│  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY        │
+│  CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,        │
+│  TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE           │
+│  SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                      │
+│                                                                              │
+╚─────────────────────────────────────────────────────────────────────────────*/
 #define lutf8lib_c
 #define LUA_LIB
 
@@ -12,7 +33,13 @@
 #include "third_party/lua/lua.h"
 #include "third_party/lua/lualib.h"
 
-/* clang-format off */
+// clang-format off
+
+asm(".ident\t\"\\n\\n\
+Lua 5.4.3 (MIT License)\\n\
+Copyright 1994–2021 Lua.org, PUC-Rio.\"");
+asm(".include \"libc/disclaimer.inc\"");
+
 
 #define MAXUNICODE	0x10FFFFu
 
diff --git a/third_party/lua/lvm.c b/third_party/lua/lvm.c
index 13dd54d8f..4e4d69457 100644
--- a/third_party/lua/lvm.c
+++ b/third_party/lua/lvm.c
@@ -27,6 +27,7 @@
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #define lvm_c
 #define LUA_CORE
+
 #include "libc/str/str.h"
 #include "third_party/lua/ldebug.h"
 #include "third_party/lua/ldo.h"
@@ -41,6 +42,7 @@
 #include "third_party/lua/ltm.h"
 #include "third_party/lua/lua.h"
 #include "third_party/lua/lvm.h"
+
 // clang-format off
 
 asm(".ident\t\"\\n\\n\
diff --git a/third_party/lua/lvm.h b/third_party/lua/lvm.h
index 9abf879ce..bf3d25f41 100644
--- a/third_party/lua/lvm.h
+++ b/third_party/lua/lvm.h
@@ -1,10 +1,11 @@
 #ifndef lvm_h
 #define lvm_h
+
 #include "third_party/lua/ldo.h"
 #include "third_party/lua/lobject.h"
 #include "third_party/lua/ltm.h"
 
-/* clang-format off */
+// clang-format off
 
 #if !defined(LUA_NOCVTN2S)
 #define cvt2str(o)	ttisnumber(o)
diff --git a/third_party/lua/lzio.c b/third_party/lua/lzio.c
index 6e0ea173b..4a617cd8f 100644
--- a/third_party/lua/lzio.c
+++ b/third_party/lua/lzio.c
@@ -27,6 +27,7 @@
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #define lzio_c
 #define LUA_CORE
+
 #include "libc/str/str.h"
 #include "third_party/lua/llimits.h"
 #include "third_party/lua/lmem.h"
@@ -34,6 +35,7 @@
 #include "third_party/lua/lstate.h"
 #include "third_party/lua/lua.h"
 #include "third_party/lua/lzio.h"
+
 // clang-format off
 
 asm(".ident\t\"\\n\\n\
diff --git a/third_party/lua/lzio.h b/third_party/lua/lzio.h
index 0f539ade8..889114649 100644
--- a/third_party/lua/lzio.h
+++ b/third_party/lua/lzio.h
@@ -1,16 +1,10 @@
-/*
-** $Id: lzio.h $
-** Buffered streams
-** See Copyright Notice in lua.h
-*/
-
 #ifndef lzio_h
 #define lzio_h
 
 #include "third_party/lua/lmem.h"
 #include "third_party/lua/lua.h"
 
-/* clang-format off */
+// clang-format off
 
 #define EOZ	(-1)			/* end of stream */