fix RRD graphs for queues
fix RRD graphs for queues

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