buildbot/buildbot — pull request #953 by djmitche (2013-11-05 02:55:28+00:00)
Title: Set .master for buildsteps

This actually passes the tests, unlike the first version I learned.

@tomprince pointed out that there may be steps using a similarly-named attribute. If those are widespread, I'd like to see an example; otherwise, I think a release note ("don't use this attribute") should be sufficient.