Code review comment for ~raharper/curtin:fix/dname_to_serial_wwn_if_available

> one comment in line.
>
> I had once envisioned thath we might just write a shell or other program
> that interpreted config and dump that into the installed system.
>
> either way, we're dumping files into the installed system that wont ever
> be serviced, so its not a terrible suggestion.
>
> my idea would have been to have more "config" like format in /etc/curtin/disks
> and a udev rule that fired that read that data.
>
> data format might look like this:
> name=mydisk1 serial=foo-serial

I mentioned this idea at the product roadmap sprint and the discussion ended with the
understanding that the current unmanaged rules was the most ideal without a lot more work
centered around locally managing the configuration file and with what tool/cli would we do that.