Jascha Geerds 55a6469ba3 cups: Fix printing tests
It seems like there's an upstream bug in the "lpstat" command. We need
to specify the server's port.

Further information: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=711327

[root@client:~]# lpstat -H
/var/run/cups/cups.sock

[root@client:~]# lpstat -h server -H
/var/run/cups/cups.sock:631

[root@client:~]# CUPS_SERVER=server lpstat -H
server:631

[root@client:~]# lpstat -h server:631 -H
server:631
2015-05-10 12:41:21 +02:00
..
2015-05-10 12:41:21 +02:00
2013-10-28 22:45:58 +01:00

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