bpo-42419: Correct 'deprecatations' is What's New 3.9 (GH-23421) (GH-23435)

(cherry picked from commit aa3a3521cef3998d4f9e7f7ff721163b6e3e5f39)
Co-authored-by: Quentin Hibon <qh.public@yahoo.com>
1 file changed