minor bugfix (missing ()) in method call

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@2351 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/Document/InvoiceRule.py

@@ -196,6 +196,6 @@ class InvoiceRule(Rule):
       return 1
 
     def isDeliverable(self, m):
-      if m.getSimulationState() in self.getPortalDraftOrderStateList :
+      if m.getSimulationState() in self.getPortalDraftOrderStateList() :
         return 0
       return 1