gnet: add license

+1
+1
pkgs/development/libraries/gnet/default.nix
··· 17 17 meta = with stdenv.lib; { 18 18 description = "A network library, written in C, object-oriented, and built upon GLib"; 19 19 homepage = https://developer.gnome.org/gnet/; 20 + license = licenses.lgpl2; 20 21 platforms = platforms.linux; 21 22 maintainers = with maintainers; [ pSub ]; 22 23 };