git-debrebase: new-upstream: Fix error message for new version with bad syntax

[dgit.git] / git-debrebase

diff --git a/git-debrebase b/git-debrebase
index 0c351a474459471abd8ec66b9a5a3c3ffac48bba..3449ec3950ad98064baf6b0736455dfa76c456f9 100755 (executable)
--- a/git-debrebase
+++ b/git-debrebase
@@ -573,7 +573,7 @@ sub keycommits ($;$$$$) {
     my ($anchor, $breakwater);
     my $clogonly;
     my $cl;
-    $fatal //= sub { fail $_[2]; };
+    $fatal //= sub { fail $_[1]; };
     my $x = sub {
        my ($cb, $tagsfx, $mainwhy, $xwhy) = @_;
        my $why = $mainwhy.$xwhy;
@@ -1173,6 +1173,7 @@ sub cmd_new_upstream () {
     # parse args - low commitment
     my $spec_version = shift @ARGV;
     my $new_version = (new Dpkg::Version $spec_version, check => 1);
+    fail "bad version number \`$spec_version'" unless defined $new_version;
     if ($new_version->is_native()) {
        $new_version = (new Dpkg::Version "$spec_version-1", check => 1);
     }