fix pep8 on bin mining file
fix pep8 on bin mining file

mlgruby/mining,mining/mining,avelino/mining,chrisdamba/mining,jgabriellima/mining,mining/mining,mlgruby/mining,avelino/mining,seagoat/mining,chrisdamba/mining,AndrzejR/mining,jgabriellima/mining,AndrzejR/mining,seagoat/mining,mlgruby/mining