--- a/util/filters.lua	Fri Aug 09 16:03:48 2013 +0200
+++ b/util/filters.lua	Fri Aug 09 17:48:21 2013 +0200
@@ -1,7 +1,7 @@
 -- Prosody IM
 -- Copyright (C) 2008-2010 Matthew Wild
 -- Copyright (C) 2008-2010 Waqas Hussain
--- 
+--
 -- This project is MIT/X11 licensed. Please see the
 -- COPYING file in the source package for more information.
 --
@@ -16,7 +16,7 @@
 	if not session.filters then
 		local filters = {};
 		session.filters = filters;
-		
+
 		function session.filter(type, data)
 			local filter_list = filters[type];
 			if filter_list then
@@ -28,11 +28,11 @@
 			return data;
 		end
 	end
-	
+
 	for i=1,#new_filter_hooks do
 		new_filter_hooks[i](session);
 	end
-	
+
 	return session.filter;
 end
 
@@ -40,20 +40,20 @@
 	if not session.filters then
 		initialize(session);
 	end
-	
+
 	local filter_list = session.filters[type];
 	if not filter_list then
 		filter_list = {};
 		session.filters[type] = filter_list;
 	end
-	
+
 	priority = priority or 0;
-	
+
 	local i = 0;
 	repeat
 		i = i + 1;
 	until not filter_list[i] or filter_list[filter_list[i]] >= priority;
-	
+
 	t_insert(filter_list, i, callback);
 	filter_list[callback] = priority;
 end