explicitly use set-variable to work around a bug some users saw where the command invocation would vail
explicitly use set-variable to work around a bug some users saw where the command invocation would vail

mitchellh/packer,pecigonzalo/packer,youhong316/packer,paulmey/packer,bryson/packer,ricardclau/packer,youhong316/packer,timsutton/packer,timsutton/packer,dave2/packer,youhong316/packer,timsutton/packer,timsutton/packer,dave2/packer,paulmey/packer,paulmey/packer,dave2/packer,mkuzmin/packer,tb3088/packer,pecigonzalo/packer,timsutton/packer,grubernaut/packer,grubernaut/packer,dave2/packer,paulmey/packer,paulmey/packer,hashicorp/packer,pecigonzalo/packer,youhong316/packer,timsutton/packer,bryson/packer,rnaveiras/packer,tb3088/packer,rnaveiras/packer,hashicorp/packer,bryson/packer,ricardclau/packer,mitchellh/packer,tas50/packer,ricardclau/packer,mkuzmin/packer,tb3088/packer,grubernaut/packer,mkuzmin/packer,grubernaut/packer,tas50/packer,mitchellh/packer,bryson/packer,pecigonzalo/packer,tb3088/packer,rnaveiras/packer,paulmey/packer,mkuzmin/packer,tas50/packer,ricardclau/packer,hashicorp/packer,mkuzmin/packer,youhong316/packer,tas50/packer,youhong316/packer,mitchellh/packer,dave2/packer,bryson/packer,rnaveiras/packer,ricardclau/packer,grubernaut/packer,bryson/packer,hashicorp/packer,rnaveiras/packer,tas50/packer,dave2/packer,tas50/packer,rnaveiras/packer,grubernaut/packer,tb3088/packer,ricardclau/packer,mitchellh/packer,mkuzmin/packer,tb3088/packer