unlink('debian/changelog.old') or die "Couldn't unlink debian/changelog.old: $!\n";
open(NEWVERSION, '>debian/version') or die "Couldn't open debian/version for writing: $!\n";
-print NEWVERSION $new_version;
+print NEWVERSION "$new_version\n";
close NEWVERSION;
-system('dpkg-buildpackage -rfakeroot -us -uc');
+system('dpkg-buildpackage -b -rfakeroot -us -uc');
unlink 'debian/version' or die "Couldn't unlink debian/version: $!\n";