iFixit/git-scripts — pull request #124 by xiongchiamiov (2014-03-31 21:07:08+00:00)
Title: Add message-editing hook

This allows us to write a plugin that automatically prefills CCs into
the pull request description. Importantly, it happens *before* the user
gets the message opened in their editor, so they can still edit it (it's
on the same level as the pre-fill from the last commit).