code: private void handleLongOption(String token) throws ParseException
      {
          if (token.indexOf('=') == -1)
          {
              handleLongOptionWithoutEqual(token);
          }
          else
          {
              handleLongOptionWithEqual(token);
          }
      }
docs: Handles the following tokens:
  
  --L
  --L=V
  --L V
  --l
  
  @param token the command line token to handle