Cause posixfile to raise a DeprecationWarning.  Documented as deprecated since
Ptyhon 1.5.
diff --git a/Misc/NEWS b/Misc/NEWS
index 10564fa..264e5e7 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -211,6 +211,8 @@
 Library
 -------
 
+- The posixfile module now raises a DeprecationWarning.
+
 - Remove the gopherlib module.  This also leads to the removal of gopher
   support in urllib/urllib2.