Fix limiter selection validation.
Fix limiter selection validation.

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