Switch to oslo_log

Change-Id: Id9ce71a53f4392ea1bd408681d01b6174d86ae61
diff --git a/test-requirements.txt b/test-requirements.txt
index cbb75b1..dddb31f 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -10,4 +10,5 @@
 coverage>=4.0 # Apache-2.0
 oslotest>=1.10.0 # Apache-2.0
 oslo.policy>=1.17.0  # Apache-2.0
+oslo.log>=3.11.0 # Apache-2.0
 tempest>=12.1.0  # Apache-2.0