fix TestPeerManagerPriority
fix TestPeerManagerPriority

mtlynch/Sia,NebulousLabs/Sia,ChrisSchinnerl/Sia,NebulousLabs/Sia,ChrisSchinnerl/Sia,MrStrong/Sia,MrStrong/Sia,ericflo/Sia,mharkus/Sia,ericflo/Sia,mharkus/Sia,mtlynch/Sia