BUG: in kroupa.py, used variable before defined
BUG: in kroupa.py, used variable before defined

guillochon/MOSFiT,guillochon/MOSFiT,bmockler/MOSFiT,guillochon/MOSFiT,mnicholl/MOSFiT,guillochon/FriendlyFit,mnicholl/MOSFiT,mnicholl/MOSFiT,villrv/MOSFiT,villrv/MOSFiT,bmockler/MOSFiT