Make --output required.

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voussoir 2021-05-14 17:39:45 -07:00
parent 548f11a2ac
commit 6855a9b5e1
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@ -49,7 +49,7 @@ def main(argv):
parser = argparse.ArgumentParser(description=__doc__)
parser.add_argument('image_files', nargs='+')
parser.add_argument('--output')
parser.add_argument('--output', required=True)
parser.add_argument('--horizontal', action='store_true')
parser.add_argument('--vertical', action='store_true')
parser.add_argument('--gap', type=int, default=0)