% }
% my %options = &{$config_item->options_sub};
-% my @options = sort { $a <=> $b } keys %options;
+% my @options = keys %options;
+% my $sortsub = $config_item->sort_sub || sub { $a <=> $b };
+% @options = sort $sortsub @options;
% my %saw;
% foreach my $value ( @options ) {
% local($^W)=0; next if $saw{$value}++;