git-debrebase: when dieing due to bad commit, print differs

diff --git a/git-debrebase b/git-debrebase
index 225f0c5bbb212473e5157a0fe028ca2183bfbe23..dd1ddb0a9cc7d350323d33e7a3ff9350c1f4686e 100755 (executable)
--- a/git-debrebase
+++ b/git-debrebase
@@ -475,7 +475,9 @@ sub walk ($;$$) {
        if ($nogenerate) {
            return (undef,undef);
        }
-       die "commit $cur: Cannot cope with this commit";
+       die "commit $cur: Cannot cope with this commit (d.".
+           (join ' ', map { sprintf "%#x", $_->{Differs} }
+            @{ $cl->{Parents} }). ")";
     };
 
     my $build;