title: Beautifulsoup 4 prettify outputs XHTML, not HTML
body: <p>I'm trying to parse and prettify a bunch of files made with Microsoft FrontPage.
  Beautifulsoup parses them with no problem, but when I try to print the output with <code>prettify()</code>,
  tags like <code>&lt;meta&gt;</code> or <code>&lt;br&gt;</code> are rewritten as <code>&lt;meta ... /&gt;</code> and <code>&lt;br/&gt;</code>.</p>
  
  <p>Is there a way to force HTML output?</p>