sdl-jstest: modernize

Signed-off-by: Marcin Serwin <marcin@serwin.dev>

pkgs/by-name/sd/sdl-jstest/package.nix

@@ -36,11 +36,11 @@ stdenv.mkDerivation {
 
   cmakeFlags = [ (lib.cmakeBool "BUILD_SDL_JSTEST" false) ];
 
-  meta = with lib; {
+  meta = {
     homepage = "https://github.com/Grumbel/sdl-jstest";
     description = "Simple SDL joystick test application for the console";
-    license = licenses.gpl3;
-    platforms = platforms.linux;
+    license = lib.licenses.gpl3Plus;
+    platforms = lib.platforms.linux;
     maintainers = [ ];
     mainProgram = "sdl2-jstest";
   };