PEP8 fixes on tests/bvc_test.py
PEP8 fixes on tests/bvc_test.py

bradparks/pyNES__python_8bit_nes_games_nintendo,Gybes/pyNES,silky/pyNES,stellatigre/pyNES,sperez4mba/pyNES,BmanisKing/Mine,jay-johnson/pyNES,kod3r/pyNES,Militree/pyNES,kubov/pyNES,shekkbuilder/pyNES,GrimDerp/pyNES,jmgaya/pyNES,fufufanatic/pyNES,arabenjamin/pyNES,tekromancr/pyNES,NickDeckerDevs/pyNES,MSylvia/pyNES,bigpete/pyNES,shaunstanislaus/pyNES,imanmafi/pyNES,DaTrollMon/pyNES,edwardpark/pyNES,AsSheng/pyNES,danielserva/pyNES,JohnKossa/pyNES,ftick/pyNES,gutomaia/pyNES