[gnome-disk-utility] Document the --format-device and --xid options for gnome-disks(1)

[David Zeuthen <davidz src gnome org>]

commit 0a532439f68e25d6d999aa12ff345a04058ad3c0
Author: David Zeuthen <zeuthen gmail com>
Date:   Sun Feb 17 13:39:06 2013 -0800

    Document the --format-device and --xid options for gnome-disks(1)
    
    Signed-off-by: David Zeuthen <zeuthen gmail com>

 doc/man/gnome-disks.xml |   17 +++++++++++++++++
 1 files changed, 17 insertions(+), 0 deletions(-)
---
diff --git a/doc/man/gnome-disks.xml b/doc/man/gnome-disks.xml
index c99a768..9c9746a 100644
--- a/doc/man/gnome-disks.xml
+++ b/doc/man/gnome-disks.xml
@@ -53,6 +53,23 @@
       </varlistentry>
 
       <varlistentry>
+        <term>
+          <option>--block-device <replaceable>DEVICE</replaceable></option>
+          <option>--format-device</option>
+          <optional><option>--xid <replaceable>WINDOW-ID</replaceable></option></optional>
+        </term>
+        <listitem>
+          <para>
+            Shows the âFormat Volumeâ dialog for the block device
+            given by <replaceable>DEVICE</replaceable> (for example,
+            <filename>/dev/sdb1</filename>). If
+            <replaceable>WINDOW-ID</replaceable> is given, makes the
+            dialog transient to the given XID.
+          </para>
+        </listitem>
+      </varlistentry>
+
+      <varlistentry>
         <term><option>--help</option></term>
         <listitem>
           <para>