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="20180421022230|733" />
  </query-continue>
  <query>
    <logevents>
      <item logid="743" ns="0" title="入出力ストリーム" pageid="15" logpage="15" type="patrol" action="patrol" user="Daemon" timestamp="2019-08-31T07:03:31Z" comment="">
        <patrol cur="773" prev="718" auto="1" />
      </item>
      <item logid="742" ns="0" title="newとdelete" pageid="91" logpage="91" type="patrol" action="patrol" user="Daemon" timestamp="2018-04-21T13:02:05Z" comment="">
        <patrol cur="772" prev="588" auto="1" />
      </item>
      <item logid="741" ns="0" title="C++はヌルポインタをdeleteしても問題ない" pageid="279" logpage="279" type="patrol" action="patrol" user="Daemon" timestamp="2018-04-21T12:51:11Z" comment="">
        <patrol cur="771" prev="0" auto="1" />
      </item>
      <item logid="740" ns="0" title="C++言語解説" pageid="12" logpage="12" type="patrol" action="patrol" user="Daemon" timestamp="2018-04-21T12:34:54Z" comment="">
        <patrol cur="770" prev="769" auto="1" />
      </item>
      <item logid="739" ns="0" title="C++言語解説" pageid="12" logpage="12" type="patrol" action="patrol" user="Daemon" timestamp="2018-04-21T02:46:31Z" comment="">
        <patrol cur="769" prev="763" auto="1" />
      </item>
      <item logid="738" ns="0" title="nullptr" pageid="178" logpage="178" type="patrol" action="patrol" user="Daemon" timestamp="2018-04-21T02:45:44Z" comment="">
        <patrol cur="768" prev="766" auto="1" />
      </item>
      <item logid="737" ns="0" title="キャスト" pageid="171" logpage="171" type="patrol" action="patrol" user="Daemon" timestamp="2018-04-21T02:45:29Z" comment="">
        <patrol cur="767" prev="422" auto="1" />
      </item>
      <item logid="736" ns="0" title="nullptr" pageid="178" logpage="178" type="patrol" action="patrol" user="Daemon" timestamp="2018-04-21T02:45:04Z" comment="">
        <patrol cur="766" prev="430" auto="1" />
      </item>
      <item logid="735" ns="0" title="メモリの二重解放" pageid="278" logpage="278" type="patrol" action="patrol" user="Daemon" timestamp="2018-04-21T02:44:02Z" comment="">
        <patrol cur="765" prev="764" auto="1" />
      </item>
      <item logid="734" ns="0" title="メモリの二重解放" pageid="278" logpage="278" type="patrol" action="patrol" user="Daemon" timestamp="2018-04-21T02:42:25Z" comment="">
        <patrol cur="764" prev="0" auto="1" />
      </item>
    </logevents>
  </query>
</api>