Fixed imports from '*util' modules to not just import everything from util.
diff --git a/Lib/distutils/command/install_lib.py b/Lib/distutils/command/install_lib.py
index 1c15db1..879a7d0 100644
--- a/Lib/distutils/command/install_lib.py
+++ b/Lib/distutils/command/install_lib.py
@@ -4,7 +4,7 @@
 
 import sys, os, string
 from distutils.core import Command
-from distutils.util import copy_tree
+from distutils.dir_util import copy_tree
 
 class install_lib (Command):