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 arcontinue="Changing_Xine_Player_Audio_Settings|2428" />
  </query-continue>
  <query>
    <allredirects>
      <r ns="0" title="BFG GeForce 7300 GT" />
      <r ns="0" title="Backup and Restore" />
      <r ns="0" title="Bash dce knx" />
      <r ns="0" title="Beginners Guide: Quick &amp; Dirty" />
      <r ns="0" title="Bits And Pieces For Remote Assistance" />
      <r ns="0" title="Blu-Ray Disc and/or DVD-Player with RS-232" />
      <r ns="0" title="Bluetooth Dongle" />
      <r ns="0" title="Bug Reports" />
      <r ns="0" title="Building From Source" />
      <r ns="0" title="CM15A" />
    </allredirects>
  </query>
</api>