Bump to v4.6.0.

_baseUpdate.js

@@ -0,0 +1,18 @@
+define(['./_baseGet', './_baseSet'], function(baseGet, baseSet) {
+
+  /**
+   * The base implementation of `_.update`.
+   *
+   * @private
+   * @param {Object} object The object to query.
+   * @param {Array|string} path The path of the property to update.
+   * @param {Function} updater The function to produce the updated value.
+   * @param {Function} [customizer] The function to customize path creation.
+   * @returns {Object} Returns `object`.
+   */
+  function baseUpdate(object, path, updater, customizer) {
+    return baseSet(object, path, updater(baseGet(object, path)), customizer);
+  }
+
+  return baseUpdate;
+});