Cleanup upgrade script
Cleanup upgrade script

Thanks to Dario for helping!

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