MFC r227497, r228020:
MFC r227497 [1]:
Import upstream changesets for the output of the "zpool" command:
952 separate intent logs should be obvious in 'zpool iostat' output
1337 `zpool status -D' should tell if there are no DDT entries
References:
https://www.illumos.org/issues/952
https://www.illumos.org/issues/1337
MFC r228020:
Fix zfs(8) and zpool(8) context help to repport supported flags.
Obtained from: Illumos (issues 952, 1337; changesets 13384, 13432) [1]
git-svn-id: svn://svn.freebsd.org/base/stable/9@229563
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