From 3ddcffd0a9188f0cfc2f081933a48f418e6cdd7b Mon Sep 17 00:00:00 2001
From: hubertf <hubertf@NetBSD.org>
Date: Thu, 15 Aug 2002 02:34:53 +0000
Subject: [PATCH] document -u

---
 usr.sbin/pkg_install/add/pkg_add.1 | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/usr.sbin/pkg_install/add/pkg_add.1 b/usr.sbin/pkg_install/add/pkg_add.1
index 0ed3c3c2a326..dd91c7c37c01 100644
--- a/usr.sbin/pkg_install/add/pkg_add.1
+++ b/usr.sbin/pkg_install/add/pkg_add.1
@@ -1,4 +1,4 @@
-.\" $NetBSD: pkg_add.1,v 1.34 2002/07/31 01:39:40 jschauma Exp $
+.\" $NetBSD: pkg_add.1,v 1.35 2002/08/15 02:34:53 hubertf Exp $
 .\"
 .\" FreeBSD install - a package for the installation and maintainance
 .\" of non-core utilities.
@@ -17,7 +17,7 @@
 .\"
 .\"     @(#)pkg_add.1
 .\"
-.Dd March 12, 2001
+.Dd August 15, 2002
 .Dt PKG_ADD 1
 .Os
 .Sh NAME
@@ -207,6 +207,10 @@ You can get a performance boost by setting the staging area
 to reside on the same disk partition as target directories for package
 file installation; often this is
 .Pa /usr .
+.It Fl u
+If the package that's being installed is already installed, either
+in the same or a different version, an update is performed.
+See below for a more detailed description of the process.
 .It Fl V
 Print version number and exit.
 .It Fl v
@@ -262,7 +266,9 @@ This is prepared by moving an existing
 file aside (if it exists), and by running
 .Xr pkg_delete 1
 on the installed package. Installation then procedes as if the package
-was not installed.
+was not installed, and restores the
+.Pa +REQUIRED_BY 
+file afterwards.
 .It
 A check is made to determine if the package conflicts (from
 .Cm @pkgcfl