Make improvements

- Add rusage to redbean Lua API
- Add more redbean documentation
- Add pledge() to redbean Lua API
- Polyfill OpenBSD pledge() for Linux
- Increase PATH_MAX limit to 1024 characters
- Untrack sibling processes after fork() on Windows

libc/intrin/kprintf.greg.c

@@ -565,7 +565,7 @@ privileged static size_t kformat(char *b, size_t n, const char *fmt, va_list va,
           // undocumented %r specifier
           // used for good carriage return
           // helps integrate loggers with repls
-          if (!__replmode || __nocolor) {
+          if (!__replstderr || __nocolor) {
             break;
           } else {
             s = "\r\033[K";

libc/intrin/nomultics.c

@@ -25,3 +25,4 @@
  * @see kprintf(), vflogf(), linenoise()
  */
 char __replmode;
+char __replstderr;

libc/intrin/nomultics.internal.h

@@ -3,7 +3,8 @@
 #if !(__ASSEMBLER__ + __LINKER__ + 0)
 COSMOPOLITAN_C_START_
 
-extern bool __replmode;
+extern char __replmode;
+extern char __replstderr;
 
 COSMOPOLITAN_C_END_
 #endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */