You are looking at the HTML representation of the XML format.
HTML is good for debugging, but is unsuitable for application use.
Specify the format parameter to change the output format.
To see the non HTML representation of the XML format, set format=xml.
See the complete documentation, or API help for more information. 
<?xml version="1.0"?>
<api>
  <query-continue>
    <allredirects garcontinue="Carole_Poliquin|3373" />
  </query-continue>
  <query>
    <pages>
      <page pageid="3366" ns="192" title="WP:Ben Manski" />
      <page pageid="3367" ns="192" title="WP:Bernie Sanders" />
      <page pageid="3368" ns="192" title="WP:Bill Hicks" />
      <page pageid="3369" ns="192" title="WP:Bob Altemeyer" />
      <page pageid="3370" ns="192" title="WP:Bonnie Faulkner" />
      <page pageid="3371" ns="192" title="WP:Brian Willson" />
      <page pageid="3372" ns="192" title="WP:Carne Ross" />
      <page pageid="4785" ns="192" title="WP:David F. Noble" />
      <page pageid="6437" ns="0" title="Black Ops Radio" />
      <page pageid="6449" ns="192" title="WP:Robert Altemeyer" />
    </pages>
  </query>
</api>