Fix typo in login exception message

Signed-off-by: Diego Medaglia <diego.medaglia@hp.com>

Author: diegomedaglia

src/redfish/rest/v1.py

@@ -1043,7 +1043,7 @@ def login(self, username=None, password=None, auth=AuthMethod.SESSION, headers={
                             error_str = resp.dict["error"]["message"]
                         except:
                             pass
-                    raise SessionCreationError('HTTP {}: Failed to created the session\n{}'.format(resp.status, error_str))
+                    raise SessionCreationError('HTTP {}: Failed to create the session\n{}'.format(resp.status, error_str))
         else:
             pass