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="2013-09-28T04:06:28Z" />
  </query-continue>
  <query>
    <logevents>
      <item logid="297" pageid="1" ns="0" title="Main Page" type="patrol" action="patrol" user="Diamond Master" timestamp="2013-10-06T05:06:47Z" comment="">
        <patrol cur="408" prev="407" auto="1" />
      </item>
      <item logid="296" pageid="1" ns="0" title="Main Page" type="patrol" action="patrol" user="Diamond Master" timestamp="2013-10-06T05:06:32Z" comment="">
        <patrol cur="407" prev="210" auto="1" />
      </item>
      <item logid="295" pageid="262" ns="6" title="File:Penumbra Map.png" type="upload" action="upload" user="Great Thrash" timestamp="2013-10-05T22:49:28Z" comment="A map of the Penumbra campaign area" />
      <item logid="294" pageid="261" ns="0" title="Phlogiston" type="patrol" action="patrol" user="Diamond Master" timestamp="2013-10-02T02:13:02Z" comment="">
        <patrol cur="404" prev="0" auto="1" />
      </item>
      <item logid="293" pageid="260" ns="0" title="Eitr" type="patrol" action="patrol" user="Diamond Master" timestamp="2013-10-02T02:12:33Z" comment="">
        <patrol cur="403" prev="402" auto="1" />
      </item>
      <item logid="292" pageid="260" ns="0" title="Eitr" type="patrol" action="patrol" user="Diamond Master" timestamp="2013-09-28T04:13:23Z" comment="">
        <patrol cur="402" prev="401" auto="1" />
      </item>
      <item logid="291" pageid="260" ns="0" title="Eitr" type="patrol" action="patrol" user="Diamond Master" timestamp="2013-09-28T04:13:03Z" comment="">
        <patrol cur="401" prev="0" auto="1" />
      </item>
      <item logid="290" pageid="259" ns="0" title="Pinnacle Tapestry" type="patrol" action="patrol" user="Diamond Master" timestamp="2013-09-28T04:10:20Z" comment="">
        <patrol cur="400" prev="0" auto="1" />
      </item>
      <item logid="289" pageid="258" ns="0" title="Precedent" type="patrol" action="patrol" user="Diamond Master" timestamp="2013-09-28T04:08:28Z" comment="">
        <patrol cur="399" prev="0" auto="1" />
      </item>
      <item logid="288" pageid="93" ns="0" title="Diamond Pantheon" type="patrol" action="patrol" user="Diamond Master" timestamp="2013-09-28T04:06:57Z" comment="">
        <patrol cur="398" prev="211" auto="1" />
      </item>
    </logevents>
  </query>
</api>