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/log.h

@@ -58,6 +58,7 @@ void AppendResourceReport(char **, struct rusage *, const char *);
 char *__get_symbol_by_addr(int64_t);
 void PrintGarbage(void);
 void PrintGarbageNumeric(FILE *);
+void CheckForMemoryLeaks(void);
 
 #define showcrashreports() ShowCrashReports()