docs: @Override
      public void usageDetail(
              final char commandPrefix,
              final ICmdLineArg<?> arg,
              final int _indentLevel)
      {
          nameIt(commandPrefix, arg);
          final String help = ((AbstractCLA<?>) arg).getHelp();
          if (help != null && help.trim().length() > 0)
          {
              allign(29);
              append(help);
              unallign();
              newLine();
          }
      }