Backport c110337 from trunk - no more manage_* warnings

doc/CHANGES.rst

@@ -11,9 +11,6 @@ http://docs.zope.org/zope2/releases/.
 Features Added
 ++++++++++++++
 
-- Use the standard libraries doctest module in favor of the deprecated version
-  in zope.testing.
-
 - Updated packages:
 
   - distribute = 0.6.10
@@ -44,6 +41,13 @@ Features Added
   - zope.securitypolicy = 3.6.1
   - zope.viewlet = 3.6.1
 
+- Downgrade the ``manage_* is discouraged. You should use event subscribers
+  instead`` warnings to debug level logging. This particular warning hasn't
+  motivated anyone to actually change any code.
+
+- Use the standard libraries doctest module in favor of the deprecated version
+  in zope.testing.
+
 - LP #143013: make the maximum number of retries on ConflictError a
   configuration option.
 

src/OFS/subscribers.py

@@ -12,12 +12,9 @@
 #
 ##############################################################################
 """
-Five subscriber definitions.
-
-$Id$
+Subscriber definitions.
 """
 
-import warnings
 from logging import getLogger
 
 import OFS.interfaces
@@ -67,10 +64,9 @@ def maybeWarnDeprecated(ob, method_name):
         # Method knows it's deprecated
         return
     class_ = ob.__class__
-    warnings.warn(
+    LOG.debug(
         "%s.%s.%s is discouraged. You should use event subscribers instead." %
-        (class_.__module__, class_.__name__, method_name),
-        DeprecationWarning)
+        (class_.__module__, class_.__name__, method_name))
 
 ##################################################