printdebug "differences \@dl @dl.\n";
progress sprintf
+"$us: base trees orig=%.20s o+d/p=%.20s",
+ $unapplied, $oldtiptree;
+ progress sprintf
"$us: quilt differences: src: %s orig %s gitignores: %s orig %s\n".
"$us: quilt differences: HEAD %s o+d/p HEAD %s o+d/p",
$dl[0], $dl[1], $dl[3], $dl[4],