Bump to v4.16.4.

toString.js

@@ -8,8 +8,8 @@ define(['./_baseToString'], function(baseToString) {
    * @memberOf _
    * @since 4.0.0
    * @category Lang
-   * @param {*} value The value to process.
-   * @returns {string} Returns the string.
+   * @param {*} value The value to convert.
+   * @returns {string} Returns the converted string.
    * @example
    *
    * _.toString(null);