gst-env: import exit from sys
On windows the Cmd Prompt for VS 2019 complains that exit is not defined.
File "C:/data/gstreamer/gst-env.py", line 622, in exit(subprocess.call(args, close_fds=False, env=env)) NameError: name 'exit' is not defined
On windows the Cmd Prompt for VS 2019 complains that exit is not defined.
File "C:/data/gstreamer/gst-env.py", line 622, in exit(subprocess.call(args, close_fds=False, env=env)) NameError: name 'exit' is not defined