title: HtmlGenericControl("img") not generating proper image tag
body: <p>in asp.net, I'm trying to generate an image tag with:</p>
  
  <pre><code>var img = new HtmlGenericControl("img");
  </code></pre>
  
  <p>it seems to generate <code>&lt;img&gt;&lt;/img&gt;</code></p>
  
  <p>How would I generate a normal image tag with asp.net/C#?</p>
  
  <p>e.g.</p>
  
  <pre><code>&lt;img/&gt;
  </code></pre>