erp5_core: Fixups in Base_getRelatedDocumentList

- Remove passing of **kw to query, since it would break Listbox
pagination
- Avoid code duplication
- Fix indentation

product/ERP5/bootstrap/erp5_core/SkinTemplateItem/portal_skins/erp5_core/Base_getRelatedDocumentList.py

@@ -11,16 +11,14 @@ limit = kw.pop('limit', None)
 follow_up_related_document_list = portal_catalog(
   portal_type=portal_type,
   follow_up_uid=context.getUid(),
-  **kw
 )
+document_query = Query(relative_url='%s/%%' % context.getRelativeUrl().replace('_', r'\_'))
 if follow_up_related_document_list:
   document_query = ComplexQuery(
-    Query(relative_url='%s/%%' % context.getRelativeUrl().replace('_', r'\_')),
+    document_query,
     Query(uid=[x.getUid() for x in follow_up_related_document_list]),
     logical_operator='or'
   )
-else:
-  document_query = Query(relative_url='%s/%%' % context.getRelativeUrl().replace('_', r'\_'))
 if query is None:
   query = document_query
 else: