template: replace deprecated os.SEEK_SET with io.SeekStart
template: replace deprecated os.SEEK_SET with io.SeekStart

paulmey/packer,hashicorp/packer,grubernaut/packer,hashicorp/packer,grubernaut/packer,ricardclau/packer,rnaveiras/packer,ricardclau/packer,hashicorp/packer,ricardclau/packer,grubernaut/packer,ricardclau/packer,paulmey/packer,mitchellh/packer,rnaveiras/packer,rnaveiras/packer,mitchellh/packer,mitchellh/packer,ricardclau/packer,pecigonzalo/packer,rnaveiras/packer,grubernaut/packer,mitchellh/packer,pecigonzalo/packer,rnaveiras/packer,paulmey/packer,rnaveiras/packer,hashicorp/packer,grubernaut/packer,pecigonzalo/packer,paulmey/packer,mitchellh/packer,grubernaut/packer,pecigonzalo/packer,paulmey/packer,ricardclau/packer,paulmey/packer