rarian: avoid unnecessary error output

This package expects GNU getopt, as it uses the -n option. Restore a
patch that addresses this, so we don't get a bunch of logging spam from
non-GNU versions during the install phase of various dependant packages.
(The package already explicitly depends on GNU getopt from pkgsrc.)

Addresses PR pkg/56871 from Yasushi Oshima, who provided the analysis.

(gutteridge)