Rename copy_reg module to copyreg.
Updated documentation.
Merged revisions 63042 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r63042 | alexandre.vassalotti | 2008-05-11 04:25:28 -0400 (Sun, 11 May 2008) | 5 lines

  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/os.py b/Lib/os.py
index a489524..b6e1570 100644
--- a/Lib/os.py
+++ b/Lib/os.py
@@ -588,7 +588,7 @@
 
     __all__.extend(["spawnvp", "spawnvpe", "spawnlp", "spawnlpe",])
 
-import copy_reg as _copy_reg
+import copyreg as _copyreg
 
 def _make_stat_result(tup, dict):
     return stat_result(tup, dict)
@@ -598,7 +598,7 @@
     return (_make_stat_result, args)
 
 try:
-    _copy_reg.pickle(stat_result, _pickle_stat_result, _make_stat_result)
+    _copyreg.pickle(stat_result, _pickle_stat_result, _make_stat_result)
 except NameError: # stat_result may not exist
     pass
 
@@ -610,7 +610,7 @@
     return (_make_statvfs_result, args)
 
 try:
-    _copy_reg.pickle(statvfs_result, _pickle_statvfs_result,
+    _copyreg.pickle(statvfs_result, _pickle_statvfs_result,
                      _make_statvfs_result)
 except NameError: # statvfs_result may not exist
     pass