Description:
------------
Run the test script can find, only <param> incorrect, others right.

Test script:
---------------
<?php

$html = '<A>AAA</A>
<B>BBB</B>
<param>Param</param>
<c>CCC</c>
<span>span</span>
<div>div</div>
<notbug>notbug</notbug>
<test>test</test>';

$doc = new DOMDocument('1.0', 'UTF-8');
$doc->preserveWhiteSpace = false;
libxml_use_internal_errors(true);
$doc->recover = true;
$doc->strictErrorChecking = false;
$doc->loadHTML($html);
echo $doc->saveXML() . PHP_EOL;
echo $doc->saveHTML() . PHP_EOL;