Followup to issue #11140 and r88682: also patch _dummy_thread.
Patch by Aymeric Augustin.
diff --git a/Misc/NEWS b/Misc/NEWS
index 0f73b31..0e83bbf 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -44,7 +44,7 @@
 - Issue #11140: Lock.release() now raises a RuntimeError when attempting
   to release an unacquired lock, as claimed in the threading documentation.
   The _thread.error exception is now an alias of RuntimeError.  Patch by
-  Filip GruszczyƄski.
+  Filip GruszczyƄski.  Patch for _dummy_thread by Aymeric Augustin.
 
 - Issue 8594: ftplib now provides a source_address parameter to specify which
   (address, port) to bind to before connecting.