ports/160884: update to libpri for nanobsd

[crees at FreeBSD.org]

Synopsis: update to libpri for nanobsd

Responsible-Changed-From-To: freebsd-ports-bugs->crees
Responsible-Changed-By: crees
Responsible-Changed-When: Wed Sep 21 19:32:08 UTC 2011
Responsible-Changed-Why: 
I'll take it.

http://www.freebsd.org/cgi/query-pr.cgi?pr=160884