thunar-djvu-thumbnailer/thunar-djvu-thumbnailer.install

   1 post_install() {
   2         echo -e "\nPlease, run /usr/lib/thunar-vfs-update-thumbnailers-cache-1 as root to update thumbnails cache\n"
   3 }
   4
   5 post_upgrade() {
   6         post_install
   7 }