5246 xdr_uid_t/xdr_gid_t cleanups
Reviewed by: David Höppner <0xffea@gmail.com>
Approved by: Richard Lowe <richlowe@richlowe.net>
	[illumos-gate merge]

commit a05fd0c9b9aa46cf66ddea7617e56facdf1f4aaf
    5246 xdr_uid_t/xdr_gid_t cleanups