Fix saving of voucher sync settings.
Fix saving of voucher sync settings.

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