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="2014-01-22T15:57:58Z" />
  </query-continue>
  <query>
    <logevents>
      <item logid="754" pageid="1591" ns="0" title="La Cantine" type="patrol" action="patrol" user="WikiSysop" timestamp="2014-01-22T16:07:56Z" comment="">
        <patrol cur="5650" prev="5124" auto="1" />
      </item>
      <item logid="753" pageid="1602" ns="0" title="Deuxième anniversaire de La Cantine" type="patrol" action="patrol" user="WikiSysop" timestamp="2014-01-22T16:05:57Z" comment="">
        <patrol cur="5649" prev="4757" auto="1" />
      </item>
      <item logid="752" pageid="1593" ns="0" title="Mercredi du Libre" type="patrol" action="patrol" user="WikiSysop" timestamp="2014-01-22T16:04:50Z" comment="">
        <patrol cur="5648" prev="5126" auto="1" />
      </item>
      <item logid="751" pageid="1560" ns="14" title="Category:Leweb" type="patrol" action="patrol" user="WikiSysop" timestamp="2014-01-22T16:04:08Z" comment="">
        <patrol cur="5647" prev="2922" auto="1" />
      </item>
      <item logid="750" pageid="1994" ns="14" title="Category:All Events" type="patrol" action="patrol" user="WikiSysop" timestamp="2014-01-22T16:03:30Z" comment="">
        <patrol cur="5646" prev="0" auto="1" />
      </item>
      <item logid="749" pageid="1606" ns="0" title="Leweb" type="patrol" action="patrol" user="WikiSysop" timestamp="2014-01-22T16:03:15Z" comment="">
        <patrol cur="5645" prev="4966" auto="1" />
      </item>
      <item logid="748" pageid="1993" ns="0" title="Events to Add" type="patrol" action="patrol" user="WikiSysop" timestamp="2014-01-22T16:00:55Z" comment="">
        <patrol cur="5644" prev="5642" auto="1" />
      </item>
      <item logid="747" pageid="1490" ns="0" title="Conferences to Add" type="patrol" action="patrol" user="WikiSysop" timestamp="2014-01-22T16:00:29Z" comment="">
        <patrol cur="5643" prev="5641" auto="1" />
      </item>
      <item logid="746" pageid="1993" ns="0" title="Events to Add" type="patrol" action="patrol" user="WikiSysop" timestamp="2014-01-22T15:59:30Z" comment="">
        <patrol cur="5642" prev="0" auto="1" />
      </item>
      <item logid="745" pageid="1490" ns="0" title="Conferences to Add" type="patrol" action="patrol" user="WikiSysop" timestamp="2014-01-22T15:59:09Z" comment="">
        <patrol cur="5641" prev="4948" auto="1" />
      </item>
    </logevents>
  </query>
</api>