Revert "remove vet which seems to have been broken in golang v1.12"
Revert "remove vet which seems to have been broken in golang v1.12"

This reverts commit 58f0b8c22ebb7ec309f6178860e29007c1913e8e.

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