Also, http://meta.wikimedia.org/wiki/How_to_become_a_MediaWiki_hacker recommends creating a patch and posting it at bugzilla, but I'm on Windows - how do I create a cvs diff in this environment?
I'm also on Windows, but for hacker tools like CVS I strongly recommend using the command line. If you already have a Windows CVS program installed, it will probably come with a Windows port of the 'cvs' command-line tool. Find it (should be called cvs.exe) and use "cvs diff -u <filename>" while you are in the appropriate subdirectory that contains the file. You can also be in a parent directory and use relative paths.
Timwi