[tex-live] update ghostscript to 9.20

[Reinhard Kotucha]

On 2016-10-11 at 09:24:02 -0300, Pablo Alfonso González Luengo wrote:

 > some plan exists to update the version of Ghostscript 9.20?

Done.  Thank you.

The new version is in the repository now (rev 42256) and will be
on CTAN in a few hours and on the mirrors abt. a day later.

Regards,
  Reinhard

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Reinhard Kotucha                            Phone: +49-511-3373112
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