Fixing bugs introduced by new presubmit changes

Fixing issues introduced by https://codereview.chromium.org/719463003/.

- Fixing the constant suffix in case of boolean action
- comment fix for mocks.

BUG=439328

[email protected], [email protected]

Review URL: https://codereview.chromium.org/757233004

Cr-Commit-Position: refs/heads/master@{#307030}
diff --git a/PRESUBMIT_test_mocks.py b/PRESUBMIT_test_mocks.py
index c15d2451..f99671da 100644
--- a/PRESUBMIT_test_mocks.py
+++ b/PRESUBMIT_test_mocks.py
@@ -40,7 +40,7 @@
 
 
 class MockOutputApi(object):
-  ""Mock class for the OutputApi class.
+  """Mock class for the OutputApi class.
 
   An instance of this class can be passed to presubmit unittests for outputing
   various types of results.