[PATCH rfc] nvme-cli: NVMf auto discovery systemd service

[Christoph Hellwig]

This looks reasoanable to me, although I'm really not the expert
for systemd stuff.

Does it handle the case where /etc/nvme/discovery.conf is non-existent
(yes, you created in the specfile, but not everyone uses rpms).

> We can also add some documentation into discovery.conf to help
> the user add discovery endpoints.

That would be great for the default one, e.g. some example RDMA
and FC configfs.