`find . -type f -name '*.go' -not -path "./vendor/*" -exec goimports -w {} \;`

Run now takes a context as well as a statebag. We'll assign the context
to the blank identifier to prevent namespace collisions. We'll let the
step authors opt-in to using the context.

`find . -iname "step_*.go" -exec gsed -i'' 's/func \(.*\)Run(/func \1Run(_ context.Context, /' {} \;`

gomvpkg -from "github.com/mitchellh/multistep" -to "github.com/hashicorp/packer/helper/multistep"