Bug#1038745: dunst: Please package new upstream release 1.9.2

[Nikos Tsipinakis]

Hi Boyuan,

I see you've made a few NM uploads to dunst already, as well as pre-packaged 
1.9.2 in salsa, thanks a lot! :)

I've now made this a maintainer upload and uploaded 1.9.2.

Cheers,
Nikos