[src/trunk]: src/bin/expr Add HISTORY section

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

details:   https://anonhg.NetBSD.org/src/rev/914b06d73b92
branches:  trunk
changeset: 347361:914b06d73b92
user:      sevan <sevan%NetBSD.org@localhost>
date:      Tue Aug 23 02:58:45 2016 +0000

description:
Add HISTORY section
Credit author of initial implementation in AUTHORS section
Bump date
Remove contraction highlighted by textproc/igor

diffstat:

 bin/expr/expr.1 |  26 ++++++++++++++++++++------
 1 files changed, 20 insertions(+), 6 deletions(-)

diffs (56 lines):

diff -r 2f58c4701534 -r 914b06d73b92 bin/expr/expr.1
--- a/bin/expr/expr.1   Mon Aug 22 23:07:36 2016 +0000
+++ b/bin/expr/expr.1   Tue Aug 23 02:58:45 2016 +0000
@@ -1,4 +1,4 @@
-.\"    $NetBSD: expr.1,v 1.33 2012/08/12 17:27:04 wiz Exp $
+.\"    $NetBSD: expr.1,v 1.34 2016/08/23 02:58:45 sevan Exp $
 .\"
 .\" Copyright (c) 2000,2003 The NetBSD Foundation, Inc.
 .\" All rights reserved.
@@ -27,7 +27,7 @@
 .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 .\" POSSIBILITY OF SUCH DAMAGE.
 .\"
-.Dd April 20, 2004
+.Dd August 23, 2016
 .Dt EXPR 1
 .Os
 .Sh NAME
@@ -214,7 +214,7 @@
 line options, and ignore it.
 Some
 .Nm
-implementations don't recognize it at all; others
+implementations do not recognize it at all; others
 might ignore it even in cases where doing so results in syntax
 error.
 There should be same result for both following examples,
@@ -242,11 +242,25 @@
 .Ar length
 keyword is an extension for compatibility with GNU
 .Nm .
+.Sh HISTORY
+An
+.Nm
+utility first appeared in the Programmer's Workbench (PWB/UNIX).
+A public domain licensed version of
+.Nm
+written by
+.An Pace Willisson
+.Aq pace%blitz.com@localhost
+appeared in
+.Bx 386 0.1 .
 .Sh AUTHORS
-Original implementation was written by
-.An J.T. Conklin
+Initial implementation by
+.An Pace Willisson
+.Aq pace%blitz.com@localhost
+was largely rewritten by
+.An -nosplit J.T. Conklin
 .Aq jtc%NetBSD.org@localhost .
-It was rewritten for
+It was rewritten again for
 .Nx 1.6
 by
 .An Jaromir Dolecek