Showcase Failure of Container Linux Transpiler To Convert Sample cloud-config file

gistfile1.txt

```
#cloud-config

coreos:
  etcd2:
    name: etcdserver
    initial-cluster: etcdserver=http://10.0.0.101:2380
    initial-advertise-peer-urls: http://10.0.0.101:2380
    advertise-client-urls: http://10.0.0.101:2379
    # listen on both the official ports and the legacy ports
    # legacy ports can be omitted if your application doesn't depend on them
    listen-client-urls: http://0.0.0.0:2379,http://0.0.0.0:4001
    listen-peer-urls: http://0.0.0.0:2380
  units:
    - name: etcd2.service
      command: start
    - name: 00-eth0.network
      runtime: true
      content: |
        [Match]
        Name=eth0

        [Network]
        DNS=1.2.3.4
        Address=10.0.0.101/24
        Gateway=10.0.0.1
```

```
ct --version
ct v0.2.2
```

```
ct -in-file sample.yml -pretty -strict

warning at line 2, column 0
Config has unrecognized key: coreos
Failed to parse config
```

#cloud-config

coreos:
  etcd2:
    name: etcdserver
    initial-cluster: etcdserver=http://10.0.0.101:2380
    initial-advertise-peer-urls: http://10.0.0.101:2380
    advertise-client-urls: http://10.0.0.101:2379
    # listen on both the official ports and the legacy ports
    # legacy ports can be omitted if your application doesn't depend on them
    listen-client-urls: http://0.0.0.0:2379,http://0.0.0.0:4001
    listen-peer-urls: http://0.0.0.0:2380
  units:
    - name: etcd2.service
      command: start
    - name: 00-eth0.network
      runtime: true
      content: |
        [Match]
        Name=eth0

        [Network]
        DNS=1.2.3.4
        Address=10.0.0.101/24
        Gateway=10.0.0.1

ct --version
ct v0.2.2

ct -in-file sample.yml -pretty -strict

warning at line 2, column 0
Config has unrecognized key: coreos
Failed to parse config

Trying to convert the Easy development/testing cluster sample from the CoreOS cluster guide.