Merge branch 'jn/branch-move-to-self'

* jn/branch-move-to-self: Allow checkout -B <current-branch> to update the current branch branch: allow a no-op "branch -M <current-branch> HEAD"

Junio C Hamano committed Dec 13, 2011 at 22:53 UTC b2dd02112052aff875e8dc7d12b9915c91feafe2

No changes.