Comment 4 for bug 1023179

Hopefully though we can reduce the code 'affected' to just this class @ https://bazaar.launchpad.net/~cloud-init-dev/cloud-init/trunk/view/head:/cloudinit/helpers.py#L182 which is now handling that type of merging if we really want to put this in (or we could say let people provide a replacement for that class via a plugin) that would let them merge differently if they wanted???