[3.13] gh-111259: Document idiomatic RE pattern (?s:.) that matches any character (GH-120745)#120813

serhiy-storchaka merged 1 commit intopython:3.13python/cpython:3.13from

miss-islington:backport-a2f6f7d-3.13miss-islington/cpython:backport-a2f6f7d-3.13Copy head branch name to clipboard