docs: public final void usage(String commandName, StringBuilder out, String indent) {
          String description = getCommandDescription(commandName);
          JCommander jc = commander.findCommandByAlias(commandName);
  
          if (description != null) {
              out.append(indent).append(description);
              out.append("\n");
          }
          jc.getUsageFormatter().usage(out, indent);
      }