[src/trunk]: src/lib/librt Update RETURN VALUE to match reality and POSIX

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

details:   https://anonhg.NetBSD.org/src/rev/a6acea589215
branches:  trunk
changeset: 811837:a6acea589215
user:      pgoyette <pgoyette%NetBSD.org@localhost>
date:      Wed Nov 18 13:19:52 2015 +0000

description:
Update RETURN VALUE to match reality and POSIX

diffstat:

 lib/librt/mq_receive.3 |  5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

diffs (19 lines):

diff -r 27864cf5862e -r a6acea589215 lib/librt/mq_receive.3
--- a/lib/librt/mq_receive.3    Wed Nov 18 13:00:46 2015 +0000
+++ b/lib/librt/mq_receive.3    Wed Nov 18 13:19:52 2015 +0000
@@ -1,4 +1,4 @@
-.\"    $NetBSD: mq_receive.3,v 1.4 2012/03/15 19:04:47 njoly Exp $
+.\"    $NetBSD: mq_receive.3,v 1.5 2015/11/18 13:19:52 pgoyette Exp $
 .\"
 .\" Copyright (c) 2001-2003 The Open Group, All Rights Reserved
 .\"
@@ -100,7 +100,8 @@
 .Fn mq_receive
 and
 .Fn mq_timedreceive
-functions return a value of zero.
+functions return the length of the selected message in bytes, and the
+message is removed from the queue.
 Otherwise, no message will be removed from the queue,
 the functions return a value of
 \-1, and set the global variable