man: add section describing json+ output format
authorVincent Fu <vincent.fu@wdc.com>
Mon, 7 Aug 2017 19:05:32 +0000 (15:05 -0400)
committerVincent Fu <vincent.fu@wdc.com>
Mon, 7 Aug 2017 19:06:13 +0000 (15:06 -0400)

No differences found