Fix syntax error

Author: mjackson

examples/master-detail/app.js

@@ -1,5 +1,5 @@
 import React from 'react'
-import { render,} findDOMNode } from 'react-dom'
+import { render, findDOMNode } from 'react-dom'
 import { createHistory, useBasename } from 'history'
 import { Router, History, Route, IndexRoute, Link } from 'react-router'
 import ContactStore from './ContactStore'