[src/trunk]: src/lib/libc/sys Clarify use of open flags in open(2).

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

details:   https://anonhg.NetBSD.org/src/rev/2bf12d6d71d3
branches:  trunk
changeset: 960383:2bf12d6d71d3
user:      dholland <dholland%NetBSD.org@localhost>
date:      Wed Mar 17 08:04:39 2021 +0000

description:
Clarify use of open flags in open(2).

(Avoid using values of three that are equal to four.)

diffstat:

 lib/libc/sys/open.2 |  8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)

diffs (36 lines):

diff -r e51764c125f1 -r 2bf12d6d71d3 lib/libc/sys/open.2
--- a/lib/libc/sys/open.2       Wed Mar 17 02:24:06 2021 +0000
+++ b/lib/libc/sys/open.2       Wed Mar 17 08:04:39 2021 +0000
@@ -1,4 +1,4 @@
-.\"    $NetBSD: open.2,v 1.63 2020/11/30 00:21:35 riastradh Exp $
+.\"    $NetBSD: open.2,v 1.64 2021/03/17 08:04:39 dholland Exp $
 .\"
 .\" Copyright (c) 1980, 1991, 1993
 .\"    The Regents of the University of California.  All rights reserved.
@@ -29,7 +29,7 @@
 .\"
 .\"     @(#)open.2     8.2 (Berkeley) 11/16/93
 .\"
-.Dd September 16, 2019
+.Dd March 17, 2021
 .Dt OPEN 2
 .Os
 .Sh NAME
@@ -103,7 +103,7 @@
 are specified by
 .Em or Ns 'ing
 the values listed below.
-Applications must specify exactly one of the first three values
+Applications must specify exactly one of the these four values
 (file access methods):
 .Bl -tag -offset indent -width O_DIRECTORY
 .It Dv O_RDONLY
@@ -116,7 +116,7 @@
 Open for reading and writing.
 .El
 .Pp
-Any combination of the following may be used:
+Any combination of the following may be used as well:
 .Bl -tag -offset indent -width O_DIRECTORY
 .It Dv O_NONBLOCK
 Do not block on open or for data to become available.