Fix pep8 issue

Author: pitbulk

tests/src/OneLogin/saml2_tests/response_test.py

@@ -345,7 +345,7 @@ def testGetIssuers(self):
         xml_4 = self.file_contents(join(self.data_path, 'responses', 'invalids', 'no_issuer_response.xml.base64'))
         response_4 = OneLogin_Saml2_Response(settings, xml_4)
         response_4.get_issuers()
-        self.assertEqual(['https://pitbulk.no-ip.org/simplesaml/saml2/idp/metadata.php'], response_4.get_issuers())        
+        self.assertEqual(['https://pitbulk.no-ip.org/simplesaml/saml2/idp/metadata.php'], response_4.get_issuers())
 
         xml_5 = self.file_contents(join(self.data_path, 'responses', 'invalids', 'no_issuer_assertion.xml.base64'))
         response_5 = OneLogin_Saml2_Response(settings, xml_5)