Add history and Authors section in the manpage

Submitted by:	dteske
MFC after:	2 days
Differential Revision:	https://reviews.freebsd.org/D9419

usr.bin/timeout/timeout.1

@@ -24,7 +24,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd Oct 28, 2014
+.Dd Feb 17, 2017
 .Dt TIMEOUT 1
 .Os
 .Sh NAME
@@ -127,3 +127,10 @@ the exit status return is 125.
 .Sh SEE ALSO
 .Xr kill 1 ,
 .Xr signal 3
+.Sh HISTORY
+The
+.Nm
+command first appeared in
+.Fx 10.3 .
+.Sh AUTHORS
+.An Baptiste Daroussin Aq Mt bapt@FreeBSD.org