Method allowUnknownOption

lib/command.js:828–831

* Allow unknown options on the command line. * * @param {boolean} [allowUnknown] - if `true` or omitted, no error will be thrown for unknown options. * @return {Command} `this` command for chaining

(allowUnknown = true)

   * @return {Command} `this` command for chaining
   */
  allowUnknownOption(allowUnknown = true) {
    this._allowUnknownOption = !!allowUnknown;
    return this;
  }

  /**
   * Allow excess command-arguments on the command line. Pass false to make excess arguments an error.