mxcl/homebrew — pull request #16151 by robrix (2012-11-20 00:10:12+00:00)
Title: Adds @rentzsch’s fork of git-subtree.

I’m using @rentzsch’s fork as it appears to be the best-maintained.

This is primarily useful with Xcode git because it doesn’t include contrib.

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git-subtree is included in git, but Xcode git lacks contrib; and for people who use Xcode git, and who therefore lack git-subtree, it’s more convenient to install git-subtree than to install git + its contribs.