.circleci/config.yml: use go 1.12
.circleci/config.yml: use go 1.12
grubernaut/packer,bryson/packer,tas50/packer,rnaveiras/packer,paulmey/packer,tas50/packer,bryson/packer,dave2/packer,rnaveiras/packer,grubernaut/packer,mitchellh/packer,timsutton/packer,timsutton/packer,paulmey/packer,hashicorp/packer,hashicorp/packer,dave2/packer,paulmey/packer,grubernaut/packer,tas50/packer,paulmey/packer,ricardclau/packer,mitchellh/packer,dave2/packer,timsutton/packer,ricardclau/packer,rnaveiras/packer,timsutton/packer,hashicorp/packer,timsutton/packer,paulmey/packer,tas50/packer,pecigonzalo/packer,hashicorp/packer,pecigonzalo/packer,paulmey/packer,mitchellh/packer,bryson/packer,dave2/packer,tas50/packer,ricardclau/packer,mitchellh/packer,pecigonzalo/packer,dave2/packer,grubernaut/packer,tas50/packer,rnaveiras/packer,rnaveiras/packer,ricardclau/packer,pecigonzalo/packer,ricardclau/packer,grubernaut/packer,bryson/packer,timsutton/packer,bryson/packer,rnaveiras/packer,mitchellh/packer,dave2/packer,ricardclau/packer,bryson/packer,grubernaut/packer