Add URL of Andrew Kuchling's nifty re conversion page...

Doc/lib/libregex.tex

@@ -12,8 +12,9 @@ need of regular expressions should use the new \code{re} module, which
 supports the more powerful and regular Perl-style regular expressions.
 Existing code should be converted.  The standard library module
 \code{reconvert} helps in converting \code{regex} style regular
-expressions to \code{re} style regular expressions.  (The interfaces
-are different too, so the conversion cannot be fully automated.)
+expressions to \code{re} style regular expressions.  (For more
+conversion help, see the URL
+\file{http://starship.skyport.net/crew/amk/regex/regex-to-re.html}.)
 
 By default the patterns are Emacs-style regular expressions
 (with one exception).  There is

Doc/libregex.tex

@@ -12,8 +12,9 @@ need of regular expressions should use the new \code{re} module, which
 supports the more powerful and regular Perl-style regular expressions.
 Existing code should be converted.  The standard library module
 \code{reconvert} helps in converting \code{regex} style regular
-expressions to \code{re} style regular expressions.  (The interfaces
-are different too, so the conversion cannot be fully automated.)
+expressions to \code{re} style regular expressions.  (For more
+conversion help, see the URL
+\file{http://starship.skyport.net/crew/amk/regex/regex-to-re.html}.)
 
 By default the patterns are Emacs-style regular expressions
 (with one exception).  There is