Retain copyright of processing examples. This was requested by a Debian maintainer during packaging of the multiprocessing package for 2.4/2.5
diff --git a/Doc/includes/mp_pool.py b/Doc/includes/mp_pool.py
index e7aaaac..9e89cbc 100644
--- a/Doc/includes/mp_pool.py
+++ b/Doc/includes/mp_pool.py
@@ -1,6 +1,9 @@
 #
 # A test of `multiprocessing.Pool` class
 #
+# Copyright (c) 2006-2008, R Oudkerk
+# All rights reserved.
+#
 
 import multiprocessing
 import time