[cups.general] Is there a way I can spy on IPP transactions?

[wtautz]

Hi,

I guess in answer to my query (see subject line of message) is that
I could use a network sniffer, but I would presume that I could create
an intermediate backend.

spybackend:ipp// .....or something. Probably in the dev. docs but
these don't appear to exist for version 1.2.2.

walter