my %vars = (
    'dir-mode' => \$d_mode,
    'file-mode' => \$f_mode,
    'link-mode' => \$l_mode,
    'dir-owner' => \$d_own,
    'file-owner' => \$f_own,
    'link-owner' => \$l_own,
    'dir-group' => \$d_grp,
    'file-group' => \$f_grp,
    'link-group' => \$l_grp,
  );
  for my $testy (keys %{ $config{$test}{$tester} }) {
    unless ($vars{$testy}) {
      warn "Unexpected test key '$testy'";
      next;
    }
    ${ $vars{$testy} } = $config{$test}{$tester}{$testy};
  }