Bump to v4.16.0.

_setToString.js

@@ -0,0 +1,14 @@
+define(['./_baseSetToString', './_shortOut'], function(baseSetToString, shortOut) {
+
+  /**
+   * Sets the `toString` method of `func` to return `string`.
+   *
+   * @private
+   * @param {Function} func The function to modify.
+   * @param {Function} string The `toString` result.
+   * @returns {Function} Returns `func`.
+   */
+  var setToString = shortOut(baseSetToString);
+
+  return setToString;
+});