Feature request: allow lpadmin to delete printers by device URI / IP address

[nicko27]

Currently lpadmin -x requires the CUPS destination name.

For automated workstation administration, the destination name may be
unknown or may differ between machines, while the physical printer is
known by its IP address or device URI.

It would be useful to support something like:

lpadmin -x --device-uri ipp://10.20.30.40/ipp/print

or possibly:

lpadmin -x --host 10.20.30.40

If multiple queues point to the same host, the command could either:

• remove all matching queues, or
• require an explicit --all option.

This would make printer removal much easier to automate with tools such
as Ansible.

[michaelrsweet]

Probably not going to happen for CUPS 2.x. Maybe something for CUPS 3.x in the sharing server.