[3.13] Align functools.reduce() docstring with PEP-257 (GH-126045) (#126113)

Yak-shave in preparation for Argument Clinic adaption in gh-125999.

(cherry picked from commit 9b14083497f50213f908c1359eeaf47c97161347)

Co-authored-by: Sergey B Kirpichev <skirpichev@gmail.com>

Miss Islington (bot) committed 1y ago

e7c63107d1b40983df77cec8770403444361f1ee

Parent: 36f8184

Committed by GitHub <noreply@github.com> on 10/29/2024, 9:13:35 AM