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>
    <logevents lestart="2013-10-07T12:57:16Z" />
  </query-continue>
  <query>
    <logevents>
      <item logid="21" pageid="6" ns="0" title="Vejledning til private brugere" type="patrol" action="patrol" user="Root" timestamp="2015-07-24T16:05:39Z" comment="">
        <patrol cur="212" prev="211" auto="1" />
      </item>
      <item logid="20" pageid="6" ns="0" title="Vejledning til private brugere" type="patrol" action="patrol" user="Root" timestamp="2015-07-24T16:05:01Z" comment="">
        <patrol cur="211" prev="207" auto="1" />
      </item>
      <item logid="19" pageid="41" ns="4" title="KLID wiki:Behandling af personlige oplysninger" type="patrol" action="patrol" user="Root" timestamp="2015-07-23T04:07:04Z" comment="">
        <patrol cur="210" prev="208" auto="1" />
      </item>
      <item logid="18" pageid="32" ns="0" title="Handelsaftale mellem EU og USA" type="patrol" action="patrol" user="Root" timestamp="2015-07-23T04:05:07Z" comment="">
        <patrol cur="209" prev="173" auto="1" />
      </item>
      <item logid="17" pageid="0" ns="2" title="Bruger:OZ" type="newusers" action="create2" userid="12" user="Root" timestamp="2015-02-26T13:20:48Z" comment="" />
      <item logid="16" pageid="0" ns="2" title="Bruger:AD" type="newusers" action="byemail" userid="11" user="Root" timestamp="2013-11-03T21:50:51Z" comment="" />
      <item logid="15" pageid="0" ns="2" title="Bruger:DSI" type="newusers" action="byemail" userid="10" user="Root" timestamp="2013-10-17T15:39:05Z" comment="" />
      <item logid="14" pageid="0" ns="2" title="Bruger:Lth" type="newusers" action="byemail" userid="9" user="Root" timestamp="2013-10-09T07:49:16Z" comment="" />
      <item logid="13" pageid="0" ns="2" title="Bruger:Me" type="block" action="block" user="Root" timestamp="2013-10-07T13:07:07Z" comment="burde nedlægges">
        <block flags="nocreate,noemail" duration="infinite" />
      </item>
      <item logid="12" pageid="0" ns="2" title="Bruger:MR" type="newusers" action="byemail" userid="8" user="Root" timestamp="2013-10-07T12:58:24Z" comment="" />
    </logevents>
  </query>
</api>