luasd: set description field by directly calling script descriptor
luasd: set description field by directly calling script descriptor

Instead of expecting the longname to be passed in the config chain and
parsing it from there

xkfz007/vlc,xkfz007/vlc,xkfz007/vlc,xkfz007/vlc,xkfz007/vlc,xkfz007/vlc,xkfz007/vlc