fix double slash conundrum
fix double slash conundrum

rnaveiras/packer,timsutton/packer,ricardclau/packer,pecigonzalo/packer,timsutton/packer,bryson/packer,bryson/packer,pecigonzalo/packer,ricardclau/packer,timsutton/packer,tas50/packer,hashicorp/packer,ricardclau/packer,dave2/packer,grubernaut/packer,bryson/packer,hashicorp/packer,grubernaut/packer,dave2/packer,timsutton/packer,hashicorp/packer,paulmey/packer,grubernaut/packer,paulmey/packer,dave2/packer,ricardclau/packer,paulmey/packer,pecigonzalo/packer,bryson/packer,bryson/packer,mitchellh/packer,mitchellh/packer,timsutton/packer,mitchellh/packer,grubernaut/packer,paulmey/packer,rnaveiras/packer,paulmey/packer,tas50/packer,tas50/packer,bryson/packer,grubernaut/packer,tas50/packer,dave2/packer,hashicorp/packer,rnaveiras/packer,ricardclau/packer,dave2/packer,mitchellh/packer,tas50/packer,grubernaut/packer,pecigonzalo/packer,tas50/packer,paulmey/packer,rnaveiras/packer,ricardclau/packer,dave2/packer,rnaveiras/packer,mitchellh/packer,rnaveiras/packer,timsutton/packer