Fixup format of XMLRPC auth error to match GUI auth error.
Fixup format of XMLRPC auth error to match GUI auth error.

dennypage/pfsense,NewEraCracker/pfsense,dennypage/pfsense,pfsense/pfsense,dennypage/pfsense,phil-davis/pfsense,phil-davis/pfsense,pfsense/pfsense,NewEraCracker/pfsense,phil-davis/pfsense,dennypage/pfsense,pfsense/pfsense,pfsense/pfsense,phil-davis/pfsense,NewEraCracker/pfsense,NewEraCracker/pfsense