gh-86482: Document assignment expression need for ()s (GH-23291)


Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>
(cherry picked from commit 2b5f1360ead9aa72ae00de59edfd6c229d13933f)

Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
2 files changed