Merge branch 'rr/push-head' into maint
authorJunio C Hamano <gitster@pobox.com>
Thu, 27 Jun 2013 21:38:17 +0000 (14:38 -0700)
committerJunio C Hamano <gitster@pobox.com>
Thu, 27 Jun 2013 21:38:17 +0000 (14:38 -0700)
* rr/push-head:
push: make push.default = current use resolved HEAD
push: fail early with detached HEAD and current
push: factor out the detached HEAD error message

Trivial merge