Add a patch to print/cups and print/hplip to disable detaching of ulpt(4).
This isn't needed on FreeBSD and it always fails because the process doesn't
have the required privileges.
Add a sample devd configuration file to print/cups that gives users in group
cups access to USB printers. 
Submitted by: hselasky, Alexander Zagrebin <firstname.lastname@example.org> 
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Combine print/cups-base, print/cups-client and print/cups-image into
print/cups and update it to 2.1.3. Also remove print/cups-pstoraster,
improve print/cups-filters, print/foomatic-* and update print/hplip to
First some background. When you hand a file to cups it sets up a chain of
filter programs that converts the file to something a printer understands.
Each filter has a cost associated with it and cups tries to find the
cheapest chain. Costs used to be configured in such a way that files were
first converted to PostScript. This could then be manipulated further (e.g.
putting multiple pages on one sheet) before finally being sent to a
PostScript printer or another filter like pstoraster which produces a raster
format understood by non-PostScript printer drivers. Nowadays most filters
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