* man/chage.1.xml, man/login.defs.5.xml, man/pwck.8.xml,

man/pwconv.8.xml, man/useradd.8.xml, man/userdel.8.xml,
	man/usermod.8.xml, man/vipw.8.xml: Document the usage of the
	TCB_AUTH_GROUP, TCB_SYMLINKS, and USE_TCB configuration
	parameters.
	* man/pwconv.8.xml, man/pwck.8.xml: Document the behavior when
	USE_TCB is enabled.

man/vipw.8.xml

@@ -31,6 +31,7 @@
 -->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook V4.5//EN"
   "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
+<!ENTITY USE_TCB               SYSTEM "login.defs.d/USE_TCB.xml">
 ]>
 <refentry id='vipw.8'>
   <!--  $Id$  -->
@@ -126,6 +127,18 @@
     </variablelist>
   </refsect1>
 
+  <refsect1 id='configuration'>
+    <title>CONFIGURATION</title>
+    <para>
+      The following configuration variables in
+      <filename>/etc/login.defs</filename> change the behavior of this
+      tool:
+    </para>
+    <variablelist>
+      &USE_TCB;
+    </variablelist>
+  </refsect1>
+
   <refsect1 id='files'>
     <title>FILES</title>
     <variablelist>