Fix a wrong module name.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@16586 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/Tool/TemplateTool.py

@@ -45,7 +45,7 @@ from OFS.Traversable import NotFound
 from difflib import unified_diff
 from cStringIO import StringIO
 from zLOG import LOG
-from warning import warn
+from warnings import warn
 from urllib import pathname2url, urlopen, splittype, urlretrieve
 import re
 from xml.dom.minidom import parse