$new_version = (new Dpkg::Version "$spec_version-1", check => 1);
}
- my $new_upstream = shift @ARGV;
+ my $new_upstream = (@ARGV && $ARGV[0] !~ m{^-}) ? shift @ARGV : undef;
my $new_upstream_version = upstreamversion $new_version;
my $new_upstream_used;
($new_upstream, $new_upstream_used) =