bpo-14879: [doc] clarify how to check for errors from subprocess.Popen(..., shell=True) (GH-26755) (GH-27288)

(cherry picked from commit 50ffbe3dafcae7826d114df61d56c7ac45a6358c)

Co-authored-by: Jack DeVries <58614260+jdevries3133@users.noreply.github.com>

1 file changed