Fix fopen() without fclose() that caused the dumbbell orientation to crash with errno 24 (Can't open file))
Fix fopen() without fclose() that caused the dumbbell orientation to crash
with errno 24 (Can't open file))

jimmy516/openptv-python,jimmy516/openptv-python,jimmy516/openptv-python,OpenPTV/openptv-python,OpenPTV/openptv-python,jimmy516/openptv-python,OpenPTV/openptv-python