[src/trunk]: src/bin/sleep Document the version sleep first appeared.

[sevan <sevan%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/35860f6a161e
branches:  trunk
changeset: 347067:35860f6a161e
user:      sevan <sevan%NetBSD.org@localhost>
date:      Fri Aug 12 02:36:38 2016 +0000

description:
Document the version sleep first appeared.
Bump date.

diffstat:

 bin/sleep/sleep.1 |  9 +++++++--
 1 files changed, 7 insertions(+), 2 deletions(-)

diffs (27 lines):

diff -r fd2875a8bdbd -r 35860f6a161e bin/sleep/sleep.1
--- a/bin/sleep/sleep.1 Fri Aug 12 02:30:37 2016 +0000
+++ b/bin/sleep/sleep.1 Fri Aug 12 02:36:38 2016 +0000
@@ -1,4 +1,4 @@
-.\"    $NetBSD: sleep.1,v 1.22 2011/08/15 14:45:36 wiz Exp $
+.\"    $NetBSD: sleep.1,v 1.23 2016/08/12 02:36:38 sevan Exp $
 .\"
 .\" Copyright (c) 1990, 1993, 1994
 .\"    The Regents of the University of California.  All rights reserved.
@@ -32,7 +32,7 @@
 .\"
 .\"    @(#)sleep.1     8.3 (Berkeley) 4/18/94
 .\"
-.Dd August 13, 2011
+.Dd August 12, 2016
 .Dt SLEEP 1
 .Os
 .Sh NAME
@@ -121,3 +121,8 @@
 command is expected to be
 .St -p1003.2
 compatible.
+.Sh HISTORY
+A
+.Nm
+utility appeared in
+.At v4 .