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

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

details:   https://anonhg.NetBSD.org/src/rev/1edf66a7c039
branches:  trunk
changeset: 347040:1edf66a7c039
user:      sevan <sevan%NetBSD.org@localhost>
date:      Thu Aug 11 01:47:15 2016 +0000

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

diffstat:

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

diffs (27 lines):

diff -r 864bec03bf5c -r 1edf66a7c039 bin/echo/echo.1
--- a/bin/echo/echo.1   Thu Aug 11 01:33:25 2016 +0000
+++ b/bin/echo/echo.1   Thu Aug 11 01:47:15 2016 +0000
@@ -1,4 +1,4 @@
-.\"    $NetBSD: echo.1,v 1.13 2003/08/07 09:05:12 agc Exp $
+.\"    $NetBSD: echo.1,v 1.14 2016/08/11 01:47:15 sevan Exp $
 .\"
 .\" Copyright (c) 1990, 1993
 .\"    The Regents of the University of California.  All rights reserved.
@@ -32,7 +32,7 @@
 .\"
 .\"    @(#)echo.1      8.1 (Berkeley) 7/22/93
 .\"
-.Dd July 22, 1993
+.Dd August 11, 2016
 .Dt ECHO 1
 .Os
 .Sh NAME
@@ -66,3 +66,8 @@
 utility is expected to be
 .St -p1003.2
 compatible.
+.Sh HISTORY
+An
+.Nm
+utility appeared in
+.At v3 .