Bug#1100709: mate-desktop: Update MATE Desktop to current version (v1.28)

[Christian Weiske]

This is a duplicate of bug #1096074.

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1096074

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Regards/Mit freundlichen Grüßen
Christian Weiske

-=≡ Geeking around in the name of science since 1982 ≡=-