Issue #3139: Make buffer-interface thread-safe wrt. PyArg_ParseTuple,
by denying s# to parse objects that have a releasebuffer procedure,
and introducing s*.

More module might need to get converted to use s*.
diff --git a/Misc/NEWS b/Misc/NEWS
index 3987402..0a66c78 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -12,6 +12,10 @@
 Core and Builtins
 -----------------
 
+- Issue #3139: Make buffer-interface thread-safe wrt. PyArg_ParseTuple,
+  by denying s# to parse objects that have a releasebuffer procedure,
+  and introducing s*.
+
 - Issue #3537: Fix an assertion failure when an empty but presized dict
   object was stored in the freelist.