cups service: set path for cups-genppdupdate

Changed files
+1 -1
nixos
modules
services
printing
+1 -1
nixos/modules/services/printing/cupsd.nix
···
[ ! -e "/var/lib/cups/$i" ] && ln -s "${rootdir}/etc/cups/$i" "/var/lib/cups/$i"
done
${optionalString cfg.gutenprint ''
-
${gutenprint}/bin/cups-genppdupdate
+
${gutenprint}/bin/cups-genppdupdate -p /etc/cups/ppd
''}
'';
};