Adjust error for older libxml

Author: ndossche

ext/soap/tests/bugs/gh19784.phpt

@@ -9,7 +9,7 @@ $v_5257 = base64_decode($v_5256,);
 $v_5238 = array('encoding' => $v_5257);
 new SoapServer('foobarbaz',$v_5238,);
 ?>
---EXPECT--
+--EXPECTF--
 <?xml version="1.0" encoding="UTF-8"?>
-<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/"><SOAP-ENV:Body><SOAP-ENV:Fault><faultcode>WSDL</faultcode><faultstring>SOAP-ERROR: Parsing WSDL: Couldn't load from 'foobarbaz' : failed to load "foobarbaz": No such file or directory
+<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/"><SOAP-ENV:Body><SOAP-ENV:Fault><faultcode>WSDL</faultcode><faultstring>SOAP-ERROR: Parsing WSDL: Couldn't load from 'foobarbaz'%s
 </faultstring></SOAP-ENV:Fault></SOAP-ENV:Body></SOAP-ENV:Envelope>