*/
    public void printUsage(Appendable out) {
        Formatter formatter = new Formatter(out);
        Set<CommandLineOption> orderedOptions = new TreeSet<CommandLineOption>(new OptionComparator());
        orderedOptions.addAll(optionsByString.values());
        Map<String, String> lines = new LinkedHashMap<String, String>();
        for (CommandLineOption option : orderedOptions) {