flake8 cleanup
flake8 cleanup

rackspace-orchestration-templates/redis-single,pratikmallya/redis-single,chrishultin/redis-single,chrishultin/redis-single,rackspace-orchestration-templates/redis-single,chrishultin/redis-single,pratikmallya/redis-single,chrishultin/redis-single,rackspace-orchestration-templates/redis-single,brint/redis-single,rackspace-orchestration-templates/redis-single,brint/redis-single,pratikmallya/redis-single,brint/redis-single,brint/redis-single,pratikmallya/redis-single