[whatwg] Parsing: comment tokenization

[Anne van Kesteren]

The tokenization section should also handle:

  <!-->
  <!--->

as "correct" comments for compat with the web. This means that

  <!-->-->

shows "-->" and that

  <!--->-->

shows "-->".


--
Anne van Kesteren
<http://annevankesteren.nl/>
<http://www.opera.com/>