mxcl/homebrew — pull request #18495 by telemachus (2013-03-15 13:54:18+00:00)
Title: Fix `brew update` so that it doesn't show doubles

Under certain conditions, `brew update` will show doubles. It's a rare
edge-case, but if you have a tap where the name of the formula is identical
with the name of the insalled file, then you see output like this:

==> Updated Formulae
aalib	ssh-copy-id
casperjs	sshuttle
jack	telemachus/anytap/brew-any-tap
mogenerator	telemachus/anytap/brew-any-tap

I believe this should fix that.