html.escape can be used in a few places in the standard lib instead of similar existing code

GitHub fields:

assignee = None
closed_at = None
created_at = <Date 2021-06-20.03:40:30.199>
labels = ['type-feature', 'library', '3.11']
title = 'html.escape can be used in a few places in the standard lib instead of similar existing code'
updated_at = <Date 2021-06-26.13:22:26.688>
user = 'https://github.com/akulakov'

bugs.python.org fields:

activity = <Date 2021-06-26.13:22:26.688>
actor = 'terry.reedy'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Library (Lib)']
creation = <Date 2021-06-20.03:40:30.199>
creator = 'andrei.avk'
dependencies = []
files = []
hgrepos = []
issue_num = 44465
keywords = []
message_count = 1.0
messages = ['396161']
nosy_count = 2.0
nosy_names = ['ezio.melotti', 'andrei.avk']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = 'enhancement'
url = 'https://bugs.python.org/issue44465'
versions = ['Python 3.11']