Code review comment for ~smoser/cloud-init:fix/fix-dhclient-hook-down

> Can we add some bash_completion/cloud-init goodness for dhclient-hook.
>
> Also, do we know of any public consumers that might be hurt by changing these
> cmdline parameter names from
> (net_action, net_interface) TO (event, interface) negative?

I dont think there would be any external consumers.