Fix linting issues

tests/test_rt2ms_py3.py

@@ -128,7 +128,6 @@ class TestArgsFunctions(unittest.TestCase):
         self.assertEqual(mock_makedirs.call_count, 1)
         mock_makedirs.assert_called_with(self.logs_dir)
 
-
     def test_get_args_logs_dir_oserror(self):
         """
         Test basic functionality of get_args - when the LOGS directory is not
@@ -157,7 +156,6 @@ class TestArgsFunctions(unittest.TestCase):
         mock_makedirs.assert_any_call(self.output_dir)
         mock_makedirs.assert_any_call(self.logs_dir)
 
-
     def test_get_args_mseed_dir_oserror(self):
         """
         Test basic functionality of get_args - when the MSEED directory is not