git-svn: correctly access repos when only given partial read permissions

diff --git a/git-merge.sh b/git-merge.sh
index 5b34b4de99c33a99dfb841795baced8889f74a88..cb094388bb5c830d37a790f5e7bbf13e8c61352a 100755 (executable)
--- a/git-merge.sh
+++ b/git-merge.sh
@@ -93,6 +93,8 @@ finish () {
        esac
 }
 
+case "$#" in 0) usage ;; esac
+
 rloga=
 while case "$#" in 0) break ;; esac
 do
@@ -197,7 +199,7 @@ f,*)
        ;;
 ?,1,"$head",*)
        # Again the most common case of merging one remote.
-       echo "Updating from $head to $1"
+       echo "Updating $(git-rev-parse --short $head)..$(git-rev-parse --short $1)"
        git-update-index --refresh 2>/dev/null
        new_head=$(git-rev-parse --verify "$1^0") &&
        git-read-tree -u -v -m $head "$new_head" &&