fix some siac API calls
fix some siac API calls

ChrisSchinnerl/Sia,rivine/rivine,MrStrong/Sia,mharkus/Sia,mharkus/Sia,cyrozap/Sia,NebulousLabs/Sia,MrStrong/Sia,ericflo/Sia,mnsl/Sia,mtlynch/Sia,ericflo/Sia,ChrisSchinnerl/Sia,johnathanhowell/Sia,rivine/rivine,kustomzone/Sia,NebulousLabs/Sia,Mingling94/Sia,mnsl/Sia,mtlynch/Sia