Bug #1542051: Exceptions now correctly call PyObject_GC_UnTrack.
Also make sure that every exception class has __module__ set to
'exceptions'.
 (backport)
diff --git a/Misc/NEWS b/Misc/NEWS
index ceb26a1..2df8b0d 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -19,6 +19,10 @@
 Core and builtins
 -----------------
 
+- Bug #1542051: Exceptions now correctly call PyObject_GC_UnTrack.
+  Also make sure that every exception class has __module__ set to
+  'exceptions'.
+
 - Bug #1550983: emit better error messages for erroneous relative
   imports (if not in package and if beyond toplevel package).