dgit: Better message formatting when --overwrite may be needed

Closes:891031.

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

1 files changed, 4 insertions, 2 deletions

diff --git a/dgit b/dgit
index d18cc73..1559a02 100755
--- a/dgit
+++ b/dgit
@@ -4013,10 +4013,12 @@ sub splitbrain_pseudomerge ($$$$) {
 	infopair_cond_ff($i_dep14, [ $maintview, 'HEAD' ]);
 	1;
     }) {
+        $@ =~ s/^\n//; chomp $@;
 	print STDERR <<END;
-$us: check failed (maybe --overwrite is needed, consult documentation)
+$@
+| Not fast forward; maybe --overwrite is needed, see dgit(1)
 END
-	die "$@";
+	finish -1;
     }
 
     my $r = pseudomerge_make_commit