Added module stub for copy_reg renaming in 3.0.
Renamed copy_reg to copyreg in the standard library, to avoid
spurious warnings and ease later merging to py3k branch. Public
documentation remains intact.
diff --git a/Lib/copy.py b/Lib/copy.py
index 3f2033f..55ea660 100644
--- a/Lib/copy.py
+++ b/Lib/copy.py
@@ -49,7 +49,7 @@
 """
 
 import types
-from copy_reg import dispatch_table
+from copyreg import dispatch_table
 
 class Error(Exception):
     pass