K 10
svn:author
V 4
will
K 8
svn:date
V 27
2018-08-20T13:42:22.517854Z
K 7
svn:log
V 252
iostat: update man page for r277566

The original commit added granularity to the transaction latency display
in the extended device stats mode, but didn't update the man page.

Reported by:	Miroslav Lachman <000.fbsd@quip.cz> via jmg
MFC after:	1 day

END