4344 Minor typos in the 3nsl man pages
Reviewed by: Marcel Telka <marcel@telka.sk>
Reviewed by: Garrett D'Amore <garrett@damore.org>
Approved by: Robert Mustacchi <rm@joyent.com>
	[illumos-gate merge]

commit d683e1b2ef0b026004841f3c0dc3a1aa84524382
    4344 Minor typos in the 3nsl man pages