--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.
When an xsl:if or xsl:when test is the bare string 'true' or 'false',
it is a non-empty string, so the branch is always taken: test="'false'"
runs when you meant it never should. Say what you mean with the boolean
functions true() and false().
Incorrect:
<xsl:if test="'false'">
<xsl:value-of select="."/>
</xsl:if>
Correct:
<xsl:if test="false()">
<xsl:value-of select="."/>
</xsl:if>
Either quote is flagged. A comparison such as @active = 'true' is left alone,
since attribute values are strings.