4985 reverse resolve does not work in /usr/lib/krb5/klookup
Reviewed by: Gordon Ross <gordon.ross@nexenta.com>
Reviewed by: Dan McDonald <danmcd@omniti.com>
Reviewed by: Garrett D'Amore <garrett@damore.org>
Approved by: Richard Lowe <richlowe@richlowe.net>
	[illumos-gate merge]

commit 9c62f9ec8ed42265fb80cb8d6873fabfae3941ab
    4985 reverse resolve does not work in /usr/lib/krb5/klookup