Lists don't get applied correctly

[charlie-haley]

Applying lists doesn't work correctly, if I have the following VyConfigure YAML values and try to add a new item to the list:

mdns:
  repeater:
    interface:
    - eth1.10

It returns a result like this:

Changes to be applied:
+ set service mdns repeater interface

Expected

The apply should output something like this:

Changes to be applied:
+ set service mdns repeater interface eth1.10