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

tool/net/demo/fetch.lua

@@ -23,8 +23,11 @@ local function WriteForm(url)
        p {
          word-break: break-word;
        }
-       p span {
-         display: block;
+       dd {
+         margin-top: 1em;
+         margin-bottom: 1em;
+       }
+       .hdr {
          text-indent: -1em;
          padding-left: 1em;
        }
@@ -53,13 +56,13 @@ local function main()
       Write('<dt>Status\r\n')
       Write(string.format('<dd><p>%d %s\r\n', status, GetHttpReason(status)))
       Write('<dt>Headers\r\n')
-      Write('<dd><p>\r\n')
+      Write('<dd>\r\n')
       for k,v in pairs(headers) do
-         Write('<span><strong>')
+         Write('<div class="hdr"><strong>')
          Write(EscapeHtml(k))
          Write('</strong>: ')
          Write(EscapeHtml(v))
-         Write('</span>\r\n')
+         Write('</div>\r\n')
       end
       Write('<dt>Payload\r\n')
       Write('<dd><pre>')