Fix an error in net/tools/tld_cleanup/PRESUBMIT.py.

Review URL: https://codereview.chromium.org/291893005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@272466 0039d316-1c4b-4281-b951-d872f2087c98

net/tools/tld_cleanup/PRESUBMIT.py

@@ -11,7 +11,7 @@ def _RunMakeDafsaTests(input_api, output_api):
   files = ('net/tools/tld_cleanup/make_dafsa.py',
            'net/tools/tld_cleanup/make_dafsa_unittest.py')
   if not any(f in input_api.LocalPaths() for f in files):
-    return
+    return []
   test_path = input_api.os_path.join(input_api.PresubmitLocalPath(),
                                      'make_dafsa_unittest.py')
   cmd_name = 'make_dafsa_unittest'