* NEWS, src/gpasswd.c, man/gpasswd.1.xml: Add --root option.

* src/gpasswd.c: The getopt index of long options is not used.

man/gpasswd.1.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!--
    Copyright (c) 1996       , Rafal Maszkowski
-   Copyright (c) 2007 - 2009, Nicolas François
+   Copyright (c) 2007 - 2011, Nicolas François
    All rights reserved.
   
    Redistribution and use in source and binary forms, with or without
@@ -157,6 +157,21 @@
 	</listitem>
       </varlistentry>
     </variablelist>
+    <variablelist remap='IP'>
+      <varlistentry>
+	<term>
+	  <option>-Q</option>, <option>--root</option>
+	  <replaceable>CHROOT_DIR</replaceable>
+	</term>
+	<listitem>
+	  <para>
+	    Apply changes in the <replaceable>CHROOT_DIR</replaceable>
+	    directory and use the configuration files from the
+	    <replaceable>CHROOT_DIR</replaceable> directory.
+	  </para>
+	</listitem>
+      </varlistentry>
+    </variablelist>
     <variablelist remap='IP'>
       <varlistentry>
 	<term>