gnome-shell-extensions-3.8.4-alt1.noarch	freedesktop-desktop	info	desktop-file-validate utility printed the following message(s): /usr/share/applications/gnome-shell-classic.desktop: hint: value "GNOME;GTK;Core;" for key "Categories" in group "Desktop Entry" does not contain a registered main category; application might only show up in a "catch-all" section of the application menu;