Make exciting improvements

- Add Lua backtraces to redbean!
- Wipe serving keys after redbean forks
- Audit redbean to remove free via exit
- Log SSL client ciphersuite preferences
- Increase ASAN malloc() backtrace depth
- Make GetSslRoots() behave as a singleton
- Move leaks.c from LIBC_TESTLIB to LIBC_LOG
- Add undocumented %n to printf() for newlines
- Fix redbean memory leak reindexing inode change
- Fix redbean memory leak with Fetch() DNS object
- Restore original environ after __cxa_finalize()
- Make backtrace always work after __cxa_finalize()
- Introduce COUNTEXPR() diagnostic / benchmark tool
- Fix a few more instances of errno being clobbered
- Consolidate the ANSI color disabling internal APIs

libc/log/commandvenv.c

@@ -45,7 +45,7 @@
  *     or the environment variable was empty; noting that the caller
  *     should copy this string before saving it
  */
-noasan const char *commandvenv(const char *var, const char *cmd) {
+const char *commandvenv(const char *var, const char *cmd) {
   const char *exepath;
   static char pathbuf[PATH_MAX];
   if (*cmd == '/' || *cmd == '\\') return cmd;