GH-80334: make multiprocessing freeze_support() usable on all spawn default platforms, not just windows#134617

gpshead wants to merge 2 commits intopython:mainpython/cpython:mainfrom

gpshead:gps/multiprocessing/freeze_support_spawn_rather_than_win32gpshead/cpython:gps/multiprocessing/freeze_support_spawn_rather_than_win32Copy head branch name to clipboard