bpo-34246: Use no mutable default args in smtplib (GH-8554)

Some methods of the SMTP class use mutable default arguments. Specially
`send_message` is affected as it mutates one of the args by appending items
to it, which has side effects on further calls.

1 files changed, 1 insertions, 0 deletions

diff --git a/Misc/ACKS b/Misc/ACKS
index 82fbc92..75047d8 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -22,6 +22,7 @@ Eitan Adler
 Anton Afanasyev
 Ali Afshar
 Nitika Agarwal
+Pablo S. Blum de Aguiar
 Jim Ahlstrom
 Farhan Ahmad
 Matthew Ahrens