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="Dāiadak" />
  </query-continue>
  <query>
    <allredirects>
      <r ns="0" title="Cednìtıt" />
      <r ns="0" title="Culture of Ishe" />
      <r ns="0" title="Culture of Mɨdu" />
      <r ns="0" title="Cəssın" />
      <r ns="0" title="Cɛbaun Kīn" />
      <r ns="0" title="Dagæm Islands" />
      <r ns="0" title="Delta Naidda" />
      <r ns="0" title="Doayâu" />
      <r ns="0" title="Dumic languages" />
      <r ns="0" title="Dumic languages/Sound changes" />
    </allredirects>
  </query>
</api>