Invoke "git gc --auto" from commit, merge, am and rebase.

The point of auto gc is to pack new objects created in loose
format, so a good rule of thumb is where we do update-ref after
creating a new commit.

Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/git-am.sh b/git-am.sh
index 6809aa07f6..4db4701c9e 100755
--- a/git-am.sh
+++ b/git-am.sh
@@ -466,6 +466,8 @@ do
 		"$GIT_DIR"/hooks/post-applypatch
 	fi
 
+	git gc --auto
+
 	go_next
 done