use go-tty in ui.Ask to fix #7299
use go-tty in ui.Ask to fix #7299

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