===================================================================
RCS file: /cvs/mandoc/mandoc.1,v
retrieving revision 1.172
retrieving revision 1.173
diff -u -p -r1.172 -r1.173
--- mandoc/mandoc.1	2017/01/28 23:30:08	1.172
+++ mandoc/mandoc.1	2017/01/31 19:44:04	1.173
@@ -1,4 +1,4 @@
-.\"	$Id: mandoc.1,v 1.172 2017/01/28 23:30:08 schwarze Exp $
+.\"	$Id: mandoc.1,v 1.173 2017/01/31 19:44:04 schwarze Exp $
 .\"
 .\" Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
 .\" Copyright (c) 2012, 2014-2017 Ingo Schwarze <schwarze@openbsd.org>
@@ -15,7 +15,7 @@
 .\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 .\"
-.Dd $Mdocdate: January 28 2017 $
+.Dd $Mdocdate: January 31 2017 $
 .Dt MANDOC 1
 .Os
 .Sh NAME
@@ -1836,6 +1836,19 @@ as if they were a text line.
 .Xr mdoc 7 ,
 .Xr roff 7 ,
 .Xr tbl 7
+.Sh HISTORY
+The
+.Nm
+utility first appeared in
+.Ox 4.8 .
+The option
+.Fl I
+appeared in
+.Ox 5.2 ,
+and
+.Fl aCcfhKklMSsw
+in
+.Ox 5.7 .
 .Sh AUTHORS
 .An -nosplit
 The