Code review comment for lp:~wallyworld/juju-core/provisioner-api-supported-containers

LGTM

https://codereview.appspot.com/25480047/diff/20001/state/apiserver/provisioner/provisioner_test.go
File state/apiserver/provisioner/provisioner_test.go (right):

https://codereview.appspot.com/25480047/diff/20001/state/apiserver/provisioner/provisioner_test.go#newcode801
state/apiserver/provisioner/provisioner_test.go:801: })
The only other test I've seen here is a machine that doesn't exist still
shows up as ErrUnauthorized rather than ErrNotFound.
I think you can do that with just adding

{
    MachineTag: "machine-42",
    ...
},

https://codereview.appspot.com/25480047/