setting ROOTBACKUP need not be done in crontab: alter the text to

explain better (it must be set in the environment) and use the
crontab text as a valid example;

based on a diff from nick@
ok nick@

2 files changed, 11 insertions, 7 deletions

diff --git a/share/man/man8/afterboot.8 b/share/man/man8/afterboot.8
index 0f6da82e1bc..f6369c574fd 100644
--- a/share/man/man8/afterboot.8
+++ b/share/man/man8/afterboot.8
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: afterboot.8,v 1.111 2005/10/31 19:37:52 jmc Exp $
+.\"	$OpenBSD: afterboot.8,v 1.112 2005/11/28 19:43:00 jmc Exp $
 .\"
 .\" Copyright (c) 1997 Marshall M. Midden
 .\" All rights reserved.
@@ -673,14 +673,17 @@ for the mount option:
 .Pp
 .Dl /dev/wd0j /altroot ffs xx 0 0
 .Pp
-and you must add a line to root's
+and the environment variable
+.Ev ROOTBACKUP
+must be set.
+For example, the following can be added to root's
 .Xr crontab 5 :
 .Pp
 .Dl ROOTBACKUP=1
 .Pp
-so that the
+The
 .Pa /etc/daily
-script will make a daily backup of the root filesystem.
+script will then make a daily backup of the root filesystem.
 .Ss Tighten up security
 You might wish to tighten up security more by editing
 .Pa /etc/fbtab
diff --git a/share/man/man8/daily.8 b/share/man/man8/daily.8
index 04b412e9a72..25577a9ff31 100644
--- a/share/man/man8/daily.8
+++ b/share/man/man8/daily.8
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: daily.8,v 1.4 2004/09/15 22:38:07 jmc Exp $
+.\"	$OpenBSD: daily.8,v 1.5 2005/11/28 19:43:00 jmc Exp $
 .\"
 .\" Copyright (c) 2003 Jason McIntyre <jmc@openbsd.org>
 .\"
@@ -99,9 +99,10 @@ Creates a backup root file system which is updated daily.
 This only happens if the following conditions are met:
 .Bl -enum -offset indent
 .It
+The environment variable
 .Ev ROOTBACKUP
-must be set to 1.
-It should be added to root's
+must be set.
+For example, the following can be added to root's
 .Xr crontab 5 :
 .Pp
 .Dl ROOTBACKUP=1