#12147: make send_message correctly handle Sender and Resent- headers.
Original patch by Nicolas Estibals. My tweaks to the patch were mostly
style/cosmetic, and adding more tests.
diff --git a/Misc/NEWS b/Misc/NEWS
index 2013559..89542ec 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -28,6 +28,9 @@
Library
-------
+- Issue #12147: Adjust the new-in-3.2 smtplib.send_message method for better
+ conformance to the RFCs: correctly handle Sender and Resent- headers.
+
- Issue #12352: Fix a deadlock in multiprocessing.Heap when a block is freed by
the garbage collector while the Heap lock is held.