Do not pass vouchers shorter than 5 characters to voucher application, they are too short to be a valid voucher.
Do not pass vouchers shorter than 5 characters to voucher application, they
are too short to be a valid voucher.

Discussed with:		Jim P
Issue:			#4985

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