bpo-33824, bpo-32030: Fix pymain_read_conf() (GH-7712)


Fix "LC_ALL=C python3.7 -V": reset properly the command line parser
when the encoding changes after reading the Python configuration.

Fix pymain_read_conf(): use memset(0) to reset properly cmdline.
(cherry picked from commit 6c5a4b315664f21bffc36ff6987fb4c4d1590897)

Co-authored-by: Victor Stinner <vstinner@redhat.com>
2 files changed