[Reproducible-builds] Bug#802057: libfile-stripnondeterminism-perl: fails with png file on armhf ("Negative length")

[Andrew Ayer]

Thanks Roland for the report and Niko for the really helpful
debugging.  This PNG file is technically non-conformant[1], but
strip-nondeterminism should handle it nevertheless.  I've changed
strip-nondeterminism to stop processing after the IEND chunk and copy
through any remaining junk.  A new version will be uploaded soon.

Cheers,
Andrew

[1] see http://www.w3.org/TR/PNG/#15FileConformance item c