Add git branch info to revision-info file.
Add git branch info to revision-info file.

lockss/lockss-daemon,edina/lockss-daemon,lockss/lockss-daemon,edina/lockss-daemon,lockss/lockss-daemon,edina/lockss-daemon,edina/lockss-daemon,lockss/lockss-daemon,lockss/lockss-daemon,lockss/lockss-daemon,edina/lockss-daemon,edina/lockss-daemon,lockss/lockss-daemon,edina/lockss-daemon