This has been committed to the vim repo: http://code.google.com/p/vim/source/diff?spec=svn24100651daa9d7140d33f298c987c9d42bd919bf&r=7bc41231fbc77c4c866eb6e170b93d268b47ad0e&format=side&path=/runtime/syntax/cs.vim&old_path=/runtime/syntax/cs.vim&old=99305c4c42d4b75bd7af6f93e9847e5ad8f8cfe9
It's also included in Lucid.
This has been committed to the vim repo: code.google. com/p/vim/ source/ diff?spec= svn24100651daa9 d7140d33f298c98 7c9d42bd919bf& r=7bc41231fbc77 c4c866eb6e170b9 3d268b47ad0e& format= side&path= /runtime/ syntax/ cs.vim& old_path= /runtime/ syntax/ cs.vim& old=99305c4c42d 4b75bd7af6f93e9 847e5ad8f8cfe9
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It's also included in Lucid.