stun: docs - removed trailing spaces

src/modules/stun/doc/stun.xml

@@ -32,6 +32,6 @@
 	</copyright>
 	</bookinfo>
 	<toc></toc>
-	
+
 	<xi:include href="stun_admin.xml"/>
 </book>

src/modules/stun/doc/stun_admin.xml

@@ -10,9 +10,9 @@
 <!-- Module User's Guide -->
 
 <chapter>
-	
+
 	<title>&adminguide;</title>
-	
+
 	<section>
 	<title>Overview</title>
 	<para>This module provides limited STUN server (RFC 5389) support for