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="Boklådan" />
  </query-continue>
  <query>
    <allredirects>
      <r ns="0" title="B. Traven" />
      <r ns="0" title="Bakunin, Michail: Gud och staten" />
      <r ns="0" title="Balestrini, Nanni: Vogliamo tutto" />
      <r ns="0" title="Baron, Samuel H. : Bloody Saturday in the Soviet Union – Novocherkassk 1962" />
      <r ns="0" title="Bayer, Osvaldo: Los anarquistas expropiadores" />
      <r ns="0" title="Bayo, Eliseo: Los atentados contra Franco" />
      <r ns="0" title="Blockad av vägbygge i Uppgrenna" />
      <r ns="0" title="Bogdanska, Daria: Wage Slaves" />
      <r ns="0" title="Bokcafét i Jönköping" />
      <r ns="0" title="Bokförlaget Oktober" />
    </allredirects>
  </query>
</api>