Replace chaining _.forEach doc example with regular usage. [ci skip]

lodash.js

@@ -9104,7 +9104,7 @@
      * @see _.forEachRight
      * @example
      *
-     * _([1, 2]).forEach(function(value) {
+     * _.forEach([1, 2], function(value) {
      *   console.log(value);
      * });
      * // => Logs `1` then `2`.