[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/>