title: ESLINT new-cap error
body: <p>I'm using ESLINT to analyze my code. The code runs fine. It's highlighting "Datastore". This is sample code from Google Cloud Platform Datastore examples.</p>
  
  <p>[eslint] A function with a name starting with an uppercase letter should only be used as a constructor. (new-cap)</p>
  
  <pre><code>// Instantiates a client
  const datastore = Datastore({
    projectId: projectId,
  });
  </code></pre>
  
  <p>Here's <code>.eslintrc.js</code></p>
  
  <pre><code>module.exports = {   extends: 'google',   parserOptions: {
      ecmaVersion: 6,   }, };
  </code></pre>