title: Golang io/ioutil NopCloser
body: <p>Does anyone have a good or any explanation of Golang's <a href="https://golang.org/pkg/io/ioutil/#NopCloser" rel="noreferrer"><code>NopCloser</code></a> function? <br> I looked around but failed to find anything besides Golang's main doc's explanation of:</p>
  
  <blockquote>
    <p>NopCloser returns a ReadCloser with a no-op Close method wrapping the
    provided Reader r.</p>
  </blockquote>
  
  <p>Any pointers or explanation would be appreciated. Thanks.</p>