[tex-live] TL2016: Stack smashed in upmendex fprint_uchar() function

[Norbert Preining]

> I think r.41497 & r.41498 have fixed the issue.

I can confirm that the Debian packages where I included these two
patches are now building and all test succeeding on all architectures.

Thanks a lot

Norbert

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PREINING Norbert + TeX Live & Debian Developer + http://www.preining.info
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