git-debrebase: stitch: add an update-ref message

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

diff --git a/git-debrebase b/git-debrebase
index c08af653a11fbb36e82bf7faccad2513d28fdb83..a5329b6b117ffe27211282038edcc40aefd4e32d 100755 (executable)
--- a/git-debrebase
+++ b/git-debrebase
@@ -1217,7 +1217,7 @@ sub cmd_stitch () {
        'Declare fast forward / record previous work',
         "[git-debrebase pseudomerge: stitch$prose]",
     ];
-    my @upd_cmd = (@git, qw(update-ref --stdin));
+    my @upd_cmd = (@git, qw(update-ref --stdin -m), "debrebase: stitch");
     debugcmd '>|', @upd_cmd;
     open U, "|-", @upd_cmd or die $!;
     my $u = <<END;