From 2230a2908b3b1993ef8421360a51cef5049a1a50 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Zbigniew=20J=C4=99drzejewski-Szmek?= <zbyszek@in.waw.pl>
Date: Fri, 23 Mar 2018 13:15:19 +0100
Subject: [PATCH] man: add a note about $XDG_SEAT and $XDG_VTNR to
 pam_systemd(8)

Issue #6499 requests that a mention that those varibles can be set in the
environment is added. But the man page already says that. There isn't much
detail, but a man page does not need to and in this case should not include
all the details. Instead a note is added that those vars can be derived from
$DISPLAY.

Closes #6499.
---
 man/pam_systemd.xml | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/man/pam_systemd.xml b/man/pam_systemd.xml
index f456316..a769a49 100644
--- a/man/pam_systemd.xml
+++ b/man/pam_systemd.xml
@@ -255,8 +255,11 @@
         for, if any. (Only applies to seats with a VT available, such
         as <literal>seat0</literal>)</para></listitem>
       </varlistentry>
-
     </variablelist>
+
+    <para>If not set, <command>pam_systemd</command> will determine the
+    values for <varname>$XDG_SEAT</varname> and <varname>$XDG_VTNR</varname>
+    based on the <varname>$DISPLAY</varname> variable.</para>
   </refsect1>
 
   <refsect1>
-- 
2.7.4