Prettier the rest of ReactNative

Reviewed By: yungsters

Differential Revision: D7974340

fbshipit-source-id: 5fe457a8a9be4bd360fc3af9acb5c1136b2be0d7

lib/InitializeJavaScriptAppEngine.js

@@ -4,8 +4,10 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  *
+ * @format
  * @flow
  */
+
 'use strict';
 
 // This is a forwarding module to allow React to require React Native internals