git: track the specific branch only

No tags, no other branches.

Signed-off-by: Barret Rhoden <brho@cs.berkeley.edu>

scripts/git/git-track

diff --git a/scripts/git/git-track b/scripts/git/git-track
index d1aa269..9f6f2bb 100755
--- a/scripts/git/git-track
+++ b/scripts/git/git-track
@@ -28,7 +28,7 @@
 	if [ $# -ne 2 ]
 	then
 		echo "Remote $REMOTE not tracked yet and no URL passed"
-		echo "Try again with the repo's URL or add the remote manually"
+		echo "	Try again with the repo's URL or add the remote manually"
 		usage
 	fi
 	URL=$2
@@ -37,4 +37,4 @@
 	git remote set-branches --add $REMOTE $BRANCH
 fi
 
-git fetch $REMOTE
+git fetch -n $REMOTE $BRANCH