hacking log warn

LOG.warn is deprecated in Python 3 [1], so add hacking warn.
[1]https://docs.python.org/3/library/logging.html#logging.warning

Change-Id: I95aa121c2b11437a086d7f8bee25ffa956dd3e4f

1 files changed, 1 insertions, 0 deletions

diff --git a/tox.ini b/tox.ini
index 53c657b64..fce08e893 100644
--- a/tox.ini
+++ b/tox.ini
@@ -68,6 +68,7 @@ max-complexity=20
 
 [hacking]
 import_exceptions = heat.common.i18n
+local-check-factory = heat.hacking.checks.factory
 
 [testenv:debug]
 commands = oslo_debug_helper {posargs}