man: Mention bare-user in manpages, along with the other modes

Closes: #602

Closes: #603
Approved by: cgwalters

man/ostree-init.xml

@@ -68,7 +68,7 @@ Boston, MA 02111-1307, USA.
             <varlistentry>
                 <term><option>--mode</option>="MODE"</term>
                 <listitem><para>
-                    Initialize repository in given mode (bare, archive-z2).  Default is "bare".
+                    Initialize repository in given mode (bare, bare-user, archive-z2).  Default is "bare".
                 </para></listitem>
             </varlistentry>
         </variablelist>

man/ostree.repo-config.xml

@@ -76,7 +76,7 @@ Boston, MA 02111-1307, USA.
     <variablelist>
       <varlistentry>
         <term><varname>mode</varname></term>
-        <listitem><para>One of <literal>bare</literal> or <literal>archive-z2</literal>.  </para></listitem>
+        <listitem><para>One of <literal>bare</literal>, <literal>bare-user</literal> or <literal>archive-z2</literal>.  </para></listitem>
       </varlistentry>
 
       <varlistentry>

man/ostree.repo.xml

@@ -60,9 +60,12 @@
 		</para>
 
 		<para>
-		  A repository can be in one of two modes;
+		  A repository can be in one of three modes;
 		  <literal>bare</literal>, which is designed as a hard
-		  link source for operating system checkouts, and
+		  link source for operating system checkouts,
+		  <literal>bare-user</literal>, which is like
+		  <literal>bare</literal> but works on systems that
+		  run as non-root as well as non-root containers, and
 		  <literal>archive-z2</literal>, which is designed for
 		  static HTTP servers.
 		</para>