1 element list should have comma.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@15992 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5Type/WebDAVSupport.py

@@ -154,7 +154,7 @@ class TextContent:
     hdrlist = []
     for p in self.getPropertyMap():
       pid = p.get('base_id', p['id'])
-      if pid not in ('text_content'):
+      if pid not in ('text_content',):
         hdrlist.append((pid, self.getProperty(p['id'])))
     return hdrlist