print STDERR "\nGarbage collection in '$link_dir'...";
chdir($link_dir) || die "chdir: $link_dir: $!";
print STDERR "\nRemoving files with link count < 3...";
-system("find . -type f -links -3 -print0 | xargs -0 rm -f") and die "system: exit status $?";
+system("find . -type f -links -3 -print0 | xargs -0rt rm -f") and die "system: exit status $?";
print STDERR "\nRemoving empty directories...";
-system("find . -type d -empty -print0 | xargs -0r rmdir -p --ignore-fail-on-non-empty") and die "system: exit status $?";
+system("find . -type d -empty -print0 | xargs -0rt rmdir -p --ignore-fail-on-non-empty") and die "system: exit status $?";
print STDERR "\nDone.\n";
exit(0);