Add native version of 'regex.transform'. The rule is used during header

scanning, so should be as fast as possible.


[SVN r21205]

tools/build

@@ -1 +1 @@
-Subproject commit 167f6c79da96599193ae9125ca4aec42410086e0
+Subproject commit 8dacac3c02b3bc69857a6c902b762f4f76d75ca9