3897 zfs filesystem and snapshot limits (fix leak)
Approved by: Christopher Siden <christopher.siden@delphix.com>
4829 sema_init(3C) botches the arguments in an example
Reviewed by: Richard Lowe <richlowe@richlowe.net>
Approved by: Robert Mustacchi <rm@joyent.com>
	[illumos-gate merge]

commit 3fabe5138cfcd4ff6438a18be90e712cd6cbb7ff
    4829 sema_init(3C) botches the arguments in an example
commit fb7001f1cd0ee8c6cacc800126125242e40ecbd4
    3897 zfs filesystem and snapshot limits (fix leak)