Fix #2 branches with same name in multiple remotes
Fix #2 branches with same name in multiple remotes

Use `git config` to get the correct upstream remote and branch when you
have branch with the same name in multiple remotes (e.g. "origin/master"
and "coworker/master"). Uses awk which may be a problem?

joaoschaab/git-radar,hallzy/git-radar,btabibian/git-radar,cbandera/git-radar,bogem/git-radar,bogem/mini-git-radar,michaeldfallen/git-radar