Log ref changes made by quiltimport.

When importing a quilt patch to a branch which has a reflog record the update to HEAD with a log message indicating the change was made by quiltimport and what patch caused the change.

---
Aside from git-resolve and git-clone this is the last shell script which didn't include a log message when invoking update-ref. So here it is. :-)

 git-quiltimport.sh |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

index 86b51ab..9f16e18 100755
@@ -112,7 +112,7 @@ for patch_name in $(cat "$QUILT_PATCHES/
 		git-apply --index -C1 "$tmp_patch" &&
 		tree=$(git-write-tree) &&
 		commit=$((echo "$SUBJECT"; echo; cat "$tmp_msg") | git-commit-tree $tree -p $commit) &&
-		git-update-ref HEAD $commit || exit 4
+		git-update-ref -m "quiltimport: $patch_name" HEAD $commit || exit 4
 	fi
 done
 rm -rf $tmp_dir || exit 5

1.4.1.gc48f