code: function (data, opts) {
      EJS_OPTS.forEach(function (p) {
          if (typeof data[p] !== 'undefined') {
              opts[p] = data[p];
          }
      });
  }
docs: Copy properties in data object that are recognized as options to an
  options object.
  
  This is used for compatibility with earlier versions of EJS and Express.js.
  
  @memberof module:ejs-internal
  @param {Object}  data data object
  @param {Options} opts options object
  @static