[Culprit-Finder] Merge lib/ to libs/.

appengine/findit/waterfall/flake/step_mapper.py

Index: appengine/findit/waterfall/flake/step_mapper.py
diff --git a/appengine/findit/waterfall/flake/step_mapper.py b/appengine/findit/waterfall/flake/step_mapper.py
index 63c09d7a0cf128327b9f2898236a5b8cebf289f3..b56fe1dbee43e0cc37f8f872621f51d94ac8df9e 100644
--- a/appengine/findit/waterfall/flake/step_mapper.py
+++ b/appengine/findit/waterfall/flake/step_mapper.py
@@ -8,7 +8,7 @@ import os
 import logging
 
 from common.http_client_appengine import HttpClientAppengine as HttpClient
-from lib import cache_decorator
+from libs import cache_decorator
 from waterfall import buildbot
 from waterfall import swarming_util
 
@@ -167,4 +167,4 @@ def FindMatchingWaterfallStep(build_step):  # pragma: no cover.
           isinstance(output.get('all_tests'), list) and
           isinstance(output.get('per_iteration_data'), list) and
           all(isinstance(i, dict) for i in output.get('per_iteration_data'))
-      )
+      )