[2680098797] Upstream Reporter: Timothée Ravier
Upstream issue status: Closed
Upstream description:

This config currently passes validation but should fail:

```
$ cat config.by
variant: fcos
version: 1.6.0-experimental
boot_device:
luks:
device: /dev/sda
```

```
$ butane --strict --pretty < config.bu
{
"ignition":

Unknown macro: { "version"}

}
```

Related to: https://github.com/coreos/butane/pull/536