the import of string.join was missing

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@4519 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5Type/patches/DCWorkflow.py

@@ -25,6 +25,7 @@ from DocumentTemplate.DT_Util import TemplateDict
 from DateTime import DateTime
 from Products.ERP5Type.Cache import CachingMethod
 from Products.ERP5Type.Utils import convertToMixedCase
+from string import join
 
 def DCWorkflowDefinition_listGlobalActions(self, info):
     '''