[master] clarify verbose switch for b10-auth

src/bin/auth/b10-auth.xml

@@ -94,8 +94,8 @@
       <varlistentry>
         <term><option>-v</option></term>
         <listitem><para>
-          Enabled verbose mode. This enables diagnostic messages to
-          STDERR.
+	  Enable verbose logging mode. This enables logging of
+	  diagnostic messages at the maximum debug level.
         </para></listitem>
       </varlistentry>