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 lecontinue="20100428230752|1545" />
  </query-continue>
  <query>
    <logevents>
      <item logid="1555" ns="6" title="File:Fault Tolerant Control Systems - General Info.pdf" pageid="0" logpage="0" type="delete" action="delete" user="CBWikiAdmin" timestamp="2010-06-23T03:05:26Z" comment="" />
      <item logid="1554" ns="0" title="CBSystem Virtual Machine" pageid="971" logpage="0" type="patrol" action="patrol" user="MarkMcKelvy" timestamp="2010-05-18T01:48:04Z" comment="">
        <patrol cur="2779" prev="2776" auto="1" />
      </item>
      <item logid="1553" ns="10" title="Template:Get CBSystem" pageid="998" logpage="0" type="patrol" action="patrol" user="MarkMcKelvy" timestamp="2010-05-17T19:54:59Z" comment="">
        <patrol cur="2771" prev="2768" auto="1" />
      </item>
      <item logid="1552" ns="0" title="License" pageid="1066" logpage="0" type="patrol" action="patrol" user="MarkMcKelvy" timestamp="2010-05-17T19:53:25Z" comment="">
        <patrol cur="2770" prev="2765" auto="1" />
      </item>
      <item logid="1551" ns="0" title="CBSystem Virtual Machine" pageid="971" logpage="0" type="patrol" action="patrol" user="MarkMcKelvy" timestamp="2010-05-17T19:52:47Z" comment="">
        <patrol cur="2769" prev="2529" auto="1" />
      </item>
      <item logid="1550" ns="10" title="Template:Get CBSystem" pageid="998" logpage="0" type="patrol" action="patrol" user="MarkMcKelvy" timestamp="2010-05-17T19:48:46Z" comment="">
        <patrol cur="2768" prev="2767" auto="1" />
      </item>
      <item logid="1549" ns="10" title="Template:Get CBSystem" pageid="998" logpage="0" type="patrol" action="patrol" user="MarkMcKelvy" timestamp="2010-05-17T19:47:59Z" comment="">
        <patrol cur="2767" prev="2766" auto="1" />
      </item>
      <item logid="1548" ns="10" title="Template:Get CBSystem" pageid="998" logpage="0" type="patrol" action="patrol" user="MarkMcKelvy" timestamp="2010-05-17T19:47:30Z" comment="">
        <patrol cur="2766" prev="2764" auto="1" />
      </item>
      <item logid="1547" ns="0" title="ThirdPartyLicense" pageid="1068" logpage="0" type="move" action="move" user="MarkMcKelvy" timestamp="2010-05-15T00:57:35Z" comment="">
        <move new_ns="0" new_title="Third Party Licenses" />
      </item>
      <item logid="1546" ns="10" title="Template:Why CBSystem" pageid="996" logpage="0" type="patrol" action="patrol" user="MarkMcKelvy" timestamp="2010-04-28T23:13:14Z" comment="">
        <patrol cur="2747" prev="2743" auto="1" />
      </item>
    </logevents>
  </query>
</api>