Add a "strict" parameter to csv.writer and csv.DictWriter

GitHub fields:

assignee = None
closed_at = None
created_at = <Date 2020-05-30.12:31:33.111>
labels = ['type-feature', '3.10']
title = 'Add a "strict" parameter to csv.writer and csv.DictWriter'
updated_at = <Date 2020-06-02.17:01:51.050>
user = 'https://github.com/ericvsmith'

bugs.python.org fields:

activity = <Date 2020-06-02.17:01:51.050>
actor = 'eric.smith'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = []
creation = <Date 2020-05-30.12:31:33.111>
creator = 'eric.smith'
dependencies = []
files = []
hgrepos = []
issue_num = 40825
keywords = []
message_count = 10.0
messages = ['370380', '370382', '370393', '370402', '370424', '370485', '370486', '370490', '370498', '370613']
nosy_count = 3.0
nosy_names = ['eric.smith', 'serhiy.storchaka', 'corona10']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = 'enhancement'
url = 'https://bugs.python.org/issue40825'
versions = ['Python 3.10']