--fix-suggestions rewrites this one, and a plain
--fix leaves it alone: the correction changes what the
stylesheet does, or is one of several the check would accept.
Setting disable-output-escaping="yes" bypasses XML serialization rules and
produces implementation-defined, non-portable results. Use xsl:copy-of or
proper element construction to emit pre-formed markup.
Incorrect:
<xsl:value-of select="raw-html" disable-output-escaping="yes"/>
Correct:
<xsl:copy-of select="raw-html/node()"/>
Only xsl:value-of and xsl:text are checked, with the attribute spelled
plain or as _disable-output-escaping.