Simplify pep8 spawning
Simplify pep8 spawning

There is no need to iterate through "PATH".

hhatto/autopep8,MeteorAdminz/autopep8,SG345/autopep8,MeteorAdminz/autopep8,vauxoo-dev/autopep8,Vauxoo/autopep8,SG345/autopep8,vauxoo-dev/autopep8,hhatto/autopep8,Vauxoo/autopep8