title: css-loader localIdentName: is a hash necessary for uniqueness?
body: <p>The <a href="https://github.com/webpack-contrib/css-loader/blob/master/README.md#modules" rel="noreferrer">css-loader README</a> suggests that <code>localIdentName</code> be set to</p>
  
  <pre><code>'[path][name]__[local]--[hash:base64:5]'
  </code></pre>
  
  <p>Is the hashing suffix necessary? Would it still be unique as this?</p>
  
  <pre><code>'[path][name]__[local]'
  </code></pre>
  
  <p>Why or why not?</p>
  
  <p>The fact that #3 is an option in this <a href="https://github.com/css-modules/css-modules/issues/194#issuecomment-262625515" rel="noreferrer">GitHub Issue discussion</a> leads me to believe it may not be necessary.</p>