gh-86463: Fix default prog in subparsers if usage is used in the parent parser#124532

serhiy-storchaka wants to merge 2 commits intopython:mainpython/cpython:mainfrom

serhiy-storchaka:argparse-subparser-custom-usageserhiy-storchaka/cpython:argparse-subparser-custom-usageCopy head branch name to clipboard