Drop disutils.log support for stdlib logging

See https://setuptools.pypa.io/en/latest/deprecated/distutils-legacy.html

ez_setup.py

@@ -23,8 +23,7 @@
 import platform
 import textwrap
 import contextlib
-
-from distutils import log
+import logging
 
 try:
     from urllib.request import urlopen
@@ -39,6 +38,9 @@
 DEFAULT_VERSION = "5.1"
 DEFAULT_URL = "https://pypi.python.org/packages/source/s/setuptools/"
 
+
+log = logging.getLogger(__name__)
+
 def _python_cmd(*args):
     """
     Return True if the command succeeded.