bpo-33497: Add errors param to cgi.parse_multipart and make an encoding in FieldStorage use the given errors (GH-6804) (GH-6837)

(cherry picked from commit 545c955be997efd6b3827b981024e6b9945d82d1)

Co-authored-by: Amber Brown <hawkowl@atleastfornow.net>
3 files changed