Added a space.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@30611 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/PropertySheet/Simulation.py

+# -*- coding: utf-8 -*-
 ##############################################################################
 #
 # Copyright (c) 2002 Nexedi SARL and Contributors. All Rights Reserved.
@@ -74,5 +75,5 @@ class Simulation:
             'mode'        : 'w' },
   )
 
-  _categories = ('order', 'delivery','delivery_mode','incoterm')
+  _categories = ('order', 'delivery', 'delivery_mode', 'incoterm')