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="2015-06-04T10:41:16Z" />
  </query-continue>
  <query>
    <logevents>
      <item logid="185" pageid="18" ns="6" title="File:RapidPortable.exe" type="delete" action="delete" user="Gareth" timestamp="2016-05-18T19:09:39Z" comment="Deleted old revision 20160518190850!RapidPortable.exe" />
      <item logid="184" pageid="18" ns="6" title="File:RapidPortable.exe" type="delete" action="delete" user="Gareth" timestamp="2016-05-18T19:09:28Z" comment="Deleted old revision 20160518190921!RapidPortable.exe" />
      <item logid="183" pageid="18" ns="6" title="File:RapidPortable.exe" type="upload" action="overwrite" user="Gareth" timestamp="2016-05-18T19:09:21Z" comment="Fix on Windows for file permissions when saving app, or app styles" />
      <item logid="182" pageid="18" ns="6" title="File:RapidPortable.exe" type="upload" action="overwrite" user="Gareth" timestamp="2016-05-18T19:08:52Z" comment="Further updates for allowing overwriting of files on Windows" />
      <item logid="181" pageid="14" ns="0" title="Quickstart" type="patrol" action="patrol" user="Gareth" timestamp="2015-09-08T16:47:59Z" comment="">
        <patrol cur="187" prev="184" auto="1" />
      </item>
      <item logid="180" pageid="18" ns="6" title="File:RapidPortable.exe" type="upload" action="overwrite" user="Gareth" timestamp="2015-07-10T18:58:47Z" comment="Fix on Windows for file permissions when saving app, or app styles" />
      <item logid="179" pageid="19" ns="6" title="File:RapidServer.war" type="upload" action="overwrite" user="Gareth" timestamp="2015-06-19T14:51:09Z" comment="2.2.5.1 - outlines for panels, table cells, and flow layout cells. Page controls shown automatically. Other improvements and bugfixes." />
      <item logid="178" pageid="14" ns="0" title="Quickstart" type="patrol" action="patrol" user="Gareth" timestamp="2015-06-19T14:49:12Z" comment="">
        <patrol cur="184" prev="173" auto="1" />
      </item>
      <item logid="177" pageid="19" ns="6" title="File:RapidServer.war" type="upload" action="overwrite" user="Gareth" timestamp="2015-06-12T09:10:37Z" comment="2.2.4.5 - data copy search type has maximum rows property. Table, panel, and flow layout guildines. Controls and Page controls visible at the same time." />
      <item logid="176" pageid="19" ns="6" title="File:RapidServer.war" type="delete" action="delete" user="Gareth" timestamp="2015-06-04T10:41:26Z" comment="Deleted old revision 20150604103740!RapidServer.war" />
    </logevents>
  </query>
</api>