Fix two NameErrors in distutils (#10407)

Lib/distutils/dir_util.py

@@ -5,6 +5,7 @@
 __revision__ = "$Id$"
 
 import os, sys
+import errno
 from distutils.errors import DistutilsFileError, DistutilsInternalError
 from distutils import log
 

Lib/distutils/tests/test_sysconfig.py

@@ -1,5 +1,6 @@
 """Tests for distutils.sysconfig."""
 import os
+import shutil
 import test
 import unittest