Fix Namecheap DynDNS host parsing for @, fixes #6122
Fix Namecheap DynDNS host parsing for @, fixes #6122

NOYB/pfsense,ch1c4um/pfsense,dennypage/pfsense,phil-davis/pfsense,pfsense/pfsense,ch1c4um/pfsense,jxmx/pfsense,NOYB/pfsense,NOYB/pfsense,ptorsten/pfsense,pfsense/pfsense,phil-davis/pfsense,BlackstarGroup/pfsense,jxmx/pfsense,ptorsten/pfsense,brunostein/pfsense,NewEraCracker/pfsense,dennypage/pfsense,brunostein/pfsense,ch1c4um/pfsense,NewEraCracker/pfsense,ch1c4um/pfsense,BlackstarGroup/pfsense,pfsense/pfsense,jxmx/pfsense,pfsense/pfsense,phil-davis/pfsense,brunostein/pfsense,NewEraCracker/pfsense,ptorsten/pfsense,NewEraCracker/pfsense,dennypage/pfsense,dennypage/pfsense,BlackstarGroup/pfsense,phil-davis/pfsense,BlackstarGroup/pfsense