mxcl/homebrew — pull request #19106 by geopet (2013-04-10 14:50:53+00:00)
Title: Add `brew update` command to outdated warning

Every time I get the out of date warning I need to run `brew help` to make sure that I'm running the right command to update brew. This pull request adds the `brew update` command to the warning notification. It also adds a minor punctuation edit.

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