Feature request: Show output from print command

[Markus Rost]

[This is not a bug report, but I am not sure where to send it.]

I would like that print commands like `lpr-region' would show me the
output from the actual printing device.

Such an output looks in my case as follows:

===Buffer *lpr-log*========================================
[stdin (plain): 1 page on 1 sheet]
request id is mw605-38 (1 file(s))
[Total: 1 page on 1 sheet] sent to the default printer

============================================================

It can be convenient to have information about which printer was
actually used.  Also, if printing failed for some reason, it would be
useful to have some error messages available.

The mechanism could perhaps work in a similar way as for
`shell-command-on-region' by showing the output in the minibuffer,
buffer *Messages*, or in a extra buffer like *Shell Command Output*.

(As for myself, I have set print-region-function to some simple
function which does what I need.)