K 10
svn:author
V 8
vangyzen
K 8
svn:date
V 27
2017-03-14T22:02:02.661549Z
K 7
svn:log
V 449
Add missing pieces of r315280

I moved this branch from github to a private server, and pulled from the
wrong one when committing r315280, so I failed to include two recent commits.
Thankfully, they were only cosmetic and were included in the review.
Specifically:

Add documentation, polish comments, and improve style(9).

Tested by:	pho (r315280)
MFC after:	2 weeks
Sponsored by:	Dell EMC
Differential Revision:	https://reviews.freebsd.org/D9791

END