Fixing D211 PEP257 violation.

Currently tox ignores D211.
D211: No blank lines allowed before class docstring
This change removes D211 ignore and fix violations.

Change-Id: I79404110896ced7f79999b8c099e2a70b01ec968

keystoneclient/tests/unit/test_cms.py

@@ -25,7 +25,6 @@ from keystoneclient.tests.unit import utils
 
 
 class CMSTest(utils.TestCase, testresources.ResourcedTestCase):
-
     """Unit tests for the keystoneclient.common.cms module."""
 
     resources = [('examples', client_fixtures.EXAMPLES_RESOURCE)]

keystoneclient/v3/role_assignments.py

@@ -16,7 +16,6 @@ from keystoneclient.i18n import _
 
 
 class RoleAssignment(base.Resource):
-
     """Represents an Identity role assignment.
 
     Attributes:
@@ -30,7 +29,6 @@ class RoleAssignment(base.Resource):
 
 
 class RoleAssignmentManager(base.CrudManager):
-
     """Manager class for manipulating Identity roles assignments."""
     resource_class = RoleAssignment
     collection_key = 'role_assignments'

tox.ini

@@ -53,8 +53,7 @@ passenv = OS_*
 # D205: Blank line required between one-line summary and description.
 # D207: Docstring is under-indented
 # D208: Docstring is over-indented
-# D211: No blank lines allowed before class docstring
-ignore = D100,D101,D102,D103,D104,D105,D200,D202,D203,D204,D205,D207,D208,D211
+ignore = D100,D101,D102,D103,D104,D105,D200,D202,D203,D204,D205,D207,D208
 show-source = True
 exclude = .venv,.tox,dist,doc,*egg,build,*openstack/common*