Block comment PEP8 fix.

Change-Id: I999425902a5c82f7af129a8a1b6998d80edb225a

tests/unit/test_shell.py

@@ -1290,7 +1290,7 @@ class TestParsing(TestBase):
         self.assertTrue(out.find('[--key <api_key>]') > 0)
         self.assertEqual(-1, out.find('--os-username=<auth-user-name>'))
 
-        ## --os-help return os options help
+        # --os-help return os options help
         opts = {}
         args = _make_args("", opts, os_opts)
         with CaptureOutput() as out:

tox.ini

@@ -50,4 +50,4 @@ commands=
 ignore = H
 select = H102, H103, H201, H501, H903
 show-source = True
-exclude = .venv,.tox,dist,doc,test,*egg
+exclude = .venv,.tox,dist,doc,*egg