Added validation check for non-negative border and surrogate escape

lincolnloop / python-qrcode

Python QR Code image generator

https://pypi.python.org/pypi/qrcode

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Closed nilam09 closed 3 years ago

nilam09 commented 3 years ago

Currently, negative border crops the QR code. Added check that only positive border value accepted.
non-UTF-8 character surrogate escape for Python 3.