tree b3b7f729746c96225f12177c111b3429f2da86a4
parent a54c527ae941a3bbf8b3ec54249ab12c3d6bf78b
author Shawn O. Pearce <sop@google.com> 1225390017 -0700
committer Shawn O. Pearce <sop@google.com> 1225390017 -0700

Don't print "Already up-to-date" during repo sync

If we are already up-to-date we just want to display no output.
This means we have to avoid calling "git merge" if there aren't
commits to be merged into the working directory.

Signed-off-by: Shawn O. Pearce <sop@google.com>