Fixed my previous changes. "keywords" is a correct metadata name.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@18420 20353a03-c40f-0410-a6d1-a30d3c3de9de

bt5/erp5_dms/WorkflowTemplateItem/portal_workflow/document_interaction_workflow/scripts/OOoDocument_updateMetadata.xml

@@ -79,7 +79,7 @@ kw = state_change[\'kwargs\']\n
 # key is a name of erp5 field.\n
 # value is a name of document metadata.\n
 metadata_field_mapping_dict = {\'title\':\'title\',\n
-                               \'subject\':\'keyword\',\n
+                               \'subject\':\'keywords\',\n
                                \'description\':\'description\',\n
                                \'reference\':\'reference\',\n
                                \'version\':\'version\',\n