K 10
svn:author
V 4
ngie
K 8
svn:date
V 27
2017-03-23T05:51:54.710688Z
K 7
svn:log
V 291
counter(9): fix igor/manlint warnings

- Reword description of `counter_enter` slightly to fix
  wordiness [1].
- Expand "isn't" as "is not" [1].
- Add missing section number with .Xr sysctl calls [2].

MFC after:	1 week
Reported by:	igor [1], make manlint [2]
Sponsored by:	Dell EMC Isilon

END