Say either $xpath_expression or $xpath, not both

[jidanni]

On XML::LibXML::Node we see

       findnodes
             @nodes = $node->findnodes( $xpath_expression );

           findnodes evaluates the xpath expression (XPath 1.0) on the current...

       find
             $result = $node->find( $xpath );

           find evaluates the XPath 1.0 expression using the current node as...

Well then they should both say ( $xpath_expression ) or both say ( $xpath ) .

Same with the other items, and other sections, of the page.