Add missing defer Close()s
Add missing defer Close()s

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