[third_party] vendor argparse.

recipe_engine/test.py

 # Copyright 2017 The LUCI Authors. All rights reserved.
 # Use of this source code is governed under the Apache License, Version 2.0
 # that can be found in the LICENSE file.
 
 from __future__ import print_function
 
-import argparse
 import bdb
 import cStringIO
 import contextlib
 import copy
 import coverage
 import datetime
 import difflib
 import fnmatch
 import functools
 import json
@@ skipping 11 matching lines @@
 from google.protobuf import json_format
 
 from . import checker
 from . import config_types
 from . import loader
 from . import run
 from . import step_runner
 from . import stream
 from . import test_result_pb2
 
+from . import env
+
+import argparse  # this is vendored
+
 
 # These variables must be set in the dynamic scope of the functions in this
 # file.  We do this instead of passing because they're not picklable, and
 # that's required by multiprocessing.
 _UNIVERSE_VIEW = None
 _ENGINE_FLAGS = None
 
 
 # An event to signal exit, for example on Ctrl-C.
 _KILL_SWITCH = multiprocessing.Event()
@@ skipping 854 matching lines @@
   Returns:
     Exit code
   """
   global _UNIVERSE_VIEW
   _UNIVERSE_VIEW = universe_view
   global _ENGINE_FLAGS
   _ENGINE_FLAGS = engine_flags
 
   args = parse_args(raw_args)
   return args.func(args)