Grep comes with OS X, so we're moving it to the duplicates branch: http://github.com/adamv/homebrew/tree/duplicates
Update formulas to make more idiomatic use of "inreplace", including its new ability to take a list of files to act on.
This is newer than the OS X provided Grep, and has new features required by the nice_find plugin for TextMate: http://github.com/briancollins/nice_find "OS X grep doesn't support --exclude-dir and --exclude only works on filenames"