nit

Author: itajaja

cwltool/main.py

@@ -10,14 +10,14 @@
 import os
 import sys
 import tempfile
+import threading
 from typing import (IO, Any, AnyStr, Callable, Dict, List, Sequence, Text, Tuple,
                     Union, cast)
 
 import pkg_resources  # part of setuptools
 import requests
 import six
 import string
-import threading
 
 import ruamel.yaml as yaml
 import schema_salad.validate as validate