[dconf] docs: Mention DCONF_PROFILE env var

[Matthias Clasen <matthiasc src gnome org>]

commit 4b3a581182c27909632d1f8239b292c94ebfd17e
Author: Matthias Clasen <mclasen redhat com>
Date:   Tue Jul 16 18:50:52 2013 -0400

    docs: Mention DCONF_PROFILE env var
    
    Its good form to list environment variables affecting a
    tool in its man page.

 docs/dconf-tool.xml |   14 ++++++++++++++
 1 files changed, 14 insertions(+), 0 deletions(-)
---
diff --git a/docs/dconf-tool.xml b/docs/dconf-tool.xml
index ae938a5..456bf27 100644
--- a/docs/dconf-tool.xml
+++ b/docs/dconf-tool.xml
@@ -164,6 +164,20 @@
   </refsect1>
 
   <refsect1>
+    <title>Environment</title>
+
+    <variablelist>
+      <varlistentry>
+        <term><envar>DCONF_PROFILE</envar></term>
+        <listitem><para>
+          This environment variable determines which <firstterm>profile</firstterm> to use. Profiles are 
defined
+          in <filename>/etc/dconf/profile</filename>. The default profile is called <literal>user</literal>.
+        </para></listitem>
+      </varlistentry>
+    </variablelist>
+  </refsect1>
+
+  <refsect1>
     <title>See Also</title>
     <para>
       <citerefentry><refentrytitle>dconf</refentrytitle><manvolnum>7</manvolnum></citerefentry>,