Rerun clang-format on the repo (#1217)

🚨 clang-format changes output per version!

This is with version 19.0.0. The modifications seem to be fixing the old
version’s errors - mainly involving omitted whitespace around binary ops
and inserted whitespace between goto labels and colons (if followed by a
curly brace.)

Also fixes a few mistakes made by e.g. someone (ahem) forgetting to pass
his ctl/string.h modifications through it.

We should add this to .git-blame-ignore-revs once we have its final hash
on master.

libc/intrin/strlen.c

@@ -31,7 +31,7 @@ static __vex size_t __strlen(const char *s) {
     m = __builtin_ia32_pmovmskb128(*++p == z);
   return (const char *)p + __builtin_ctzl(m) - s;
 #else
-#define ONES ((word)-1 / 255)
+#define ONES ((word) - 1 / 255)
 #define BANE (ONES * (255 / 2 + 1))
   typedef unsigned long mayalias word;
   word w;