PEP8 fixes on tests/sei_test.py
PEP8 fixes on tests/sei_test.py

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