Method constructor

lib/error/setOptionError.js:90–92

* Error for the "errors" array in "SetOptionError" with consistent message * @param {String} key

(key)

   * @param {String} key
   */
  constructor(key) {
    super(`"${key}" is not a valid option to set`);
  }
}

SetOptionError.SetOptionInnerError = SetOptionInnerError;