[3.10] gh-135661: Fix CDATA section parsing in HTMLParser (GH-135665) (GH-137774)#139660

ambv merged 1 commit intopython:3.10python/cpython:3.10from

miss-islington:backport-dcf2476-3.10miss-islington/cpython:backport-dcf2476-3.10Copy head branch name to clipboard