c2man: fix parameter higlighting

[Markus Amsler]

If a function parameter name is class, the html attribute 'class' is 
also replaced by the parameter highlighting regex. See 
http://source.winehq.org/WineAPI/NtQueryInformationFile.html for a example.

Log Message
       Markus Amsler <markus.amsler at oribi.org>
       Make parameter higlighting regex less "hungry".

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Index: tools/c2man.pl
===================================================================
RCS file: /home/wine/wine/tools/c2man.pl,v
retrieving revision 1.22
diff -u -r1.22 c2man.pl
--- tools/c2man.pl	7 May 2005 18:39:05 -0000	1.22
+++ tools/c2man.pl	10 Nov 2005 10:03:10 -0000
@@ -1721,7 +1721,7 @@
         # Format parameter names where they appear in the comment
         for my $parameter_name (@parameter_names)
         {
-          s/(^|[ \.\,\(\-\*])($parameter_name)($|[ \.\)\,\-\=\/])/$1$fmt[8]$2$fmt[9]$3/g;
+          s/(^|[ \.\,\(\-\*])($parameter_name)($|[ \.\)\,\-\/]|(\=[^"]))/$1$fmt[8]$2$fmt[9]$3/g;
         }
         # Structure dereferences include the dereferenced member
         s/(\-\>[A-Za-z_]+)/$fmt[8]$1$fmt[9]/g;