[ci skip] Make test more robust

Author: nielsdos

ext/xml/tests/gh14637.phpt

@@ -22,13 +22,10 @@ $long_xml_head = "<?xml version=\"1.0\"?><container><$long_text/><$long_text/><s
 $long_xml_tail = "</container>";
 $parser = createParser(false);
 $ret = xml_parse($parser, $long_xml_head, true);
-echo "ret = $ret (", xml_error_string(xml_get_error_code($parser)), ")\n";
 $parser = createParser(true);
 $ret = xml_parse($parser, $long_xml_head, false);
 $parser = createParser(true);
 $ret = xml_parse_into_struct($parser, $long_xml_head . $long_xml_tail, $values, $index);
 ?>
 --EXPECTF--
-ret = 0 (XML_ERR_NAME_REQUIRED)
-
 Fatal error: Allowed memory size of %d bytes exhausted %s in %s on line %d