Fix 'docker-machine config' cert paths
Fix 'docker-machine config' cert paths

Signed-off-by: Nathan LeClaire <38947c4d2b13dfd9789405506441b98609e8975e@gmail.com>

dgageot/machine,londoncalling/machine,dgageot/machine,Herbis/machine,SvenDowideit/machine,flavio/machine,flavio/machine,Herbis/machine,exoscale/docker-machine,voutilad/machine,londoncalling/machine,ibuildthecloud/machine,dweomer/docker-machine,docker/machine,voutilad/machine,exoscale/docker-machine,larsla/machine,larsla/machine,dweomer/docker-machine,docker/machine,SvenDowideit/machine,ibuildthecloud/machine