Fix flake8 E405 errors

Fix E405 error and start enforcing it.

Trivialfix

Change-Id: I6a55102d03bbcdd5c0c3a5cc75aea0ca37578117
diff --git a/neutron_tempest_plugin/scenario/base.py b/neutron_tempest_plugin/scenario/base.py
index 1aaf8ce..a2c5c72 100644
--- a/neutron_tempest_plugin/scenario/base.py
+++ b/neutron_tempest_plugin/scenario/base.py
@@ -40,6 +40,7 @@
     def create_server(self, flavor_ref, image_ref, key_name, networks,
                       **kwargs):
         """Create a server using tempest lib
+
         All the parameters are the ones used in Compute API
         * - Kwargs that require admin privileges
 
@@ -134,8 +135,7 @@
     @classmethod
     def create_pingable_secgroup_rule(cls, secgroup_id=None,
                                       client=None):
-        """This rule is intended to permit inbound ping
-        """
+        """This rule is intended to permit inbound ping"""
 
         rule_list = [{'protocol': 'icmp',
                       'direction': 'ingress',