code: protected static boolean argIsOption(String arg, String option) {
          return arg.equalsIgnoreCase(option) || arg.equalsIgnoreCase('-' + option);
      }
docs: Test if the argument is an option. Allow single or double leading -, be
  case insensitive.
  
  @param arg
  User specified argument
  @param option
  Option for test/comparison
  @return true if the argument matches the option