From 894429f29b4e2b81cf44ecfd8e3e9e747ae50d9c Mon Sep 17 00:00:00 2001
From: Johan Karlsson <johan@FreeBSD.org>
Date: Tue, 9 Jul 2002 02:13:26 +0000
Subject: [PATCH] Add DIAGNOSTICS section to describe exit values.

Approved by:    sheldonh (mentor)
MFC after:      1 week
---
 usr.bin/biff/biff.1 | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/usr.bin/biff/biff.1 b/usr.bin/biff/biff.1
index b14907c8a56..c19a0b18227 100644
--- a/usr.bin/biff/biff.1
+++ b/usr.bin/biff/biff.1
@@ -76,6 +76,18 @@ or the
 .Ev mail
 variable of
 .Xr csh 1 .
+.Sh DIAGNOSTICS
+The
+.Nm
+utility exits with one of the following values:
+.Bl -tag -width Ds
+.It 0
+Notification is enabled.
+.It 1
+Notification is disabled.
+.It >1
+An error occurred.
+.El
 .Sh SEE ALSO
 .Xr csh 1 ,
 .Xr mail 1 ,