Automatically discover DESC value in `make-tarball.sh`
Automatically discover DESC value in `make-tarball.sh`

Close #1634

Zarthus/znc,markusj/znc,dgw/znc,markusj/znc,Zarthus/znc,DarthGandalf/znc,znc/znc,znc/znc,Zarthus/znc,dgw/znc,dgw/znc,markusj/znc,Zarthus/znc,DarthGandalf/znc,Zarthus/znc,dgw/znc,markusj/znc,DarthGandalf/znc,DarthGandalf/znc,DarthGandalf/znc,znc/znc,DarthGandalf/znc,dgw/znc,Zarthus/znc,znc/znc,znc/znc,dgw/znc,markusj/znc,znc/znc,markusj/znc