New module 'regex-quote'.

* lib/regex-quote.h: New file.
* lib/regex-quote.c: New file.
* modules/regex-quote: New file.
Suggested by Reuben Thomas <rrt@sc3d.org>.

modules/regex-quote

@@ -0,0 +1,24 @@
+Description:
+Construct a regular expression from a literal string.
+
+Files:
+lib/regex-quote.h
+lib/regex-quote.c
+
+Depends-on:
+xalloc
+mbuiter
+
+configure.ac:
+
+Makefile.am:
+lib_SOURCES += regex-quote.c
+
+Include:
+"regex-quote.h"
+
+License:
+GPL
+
+Maintainer:
+Bruno Haible