apache/incubator-spark — pull request #569 by pwendell (2014-02-09 20:53:20+00:00)
Title: Fixes bug where merges won't close associated pull request.

Previously we added "Closes #XX" in the title. Github will sometimes
linbreak the title in a way that causes this to not work. This patch
instead adds the line in the body.

This also makes the commit format more concise for merge commits.
We might consider just dropping those in the future.