xpilot-ng: Fix build and cleanup (#57088)

pkgs/games/xpilot/default.nix

@@ -1,23 +1,20 @@
-{stdenv, fetchurl, libX11, libSM, SDL, libGLU_combined, expat, SDL_ttf, SDL_image, zlib}:
-let
-  buildInputs = [
-    libX11 libSM SDL SDL_ttf SDL_image libGLU_combined expat zlib
-  ];
-in
+{ stdenv, fetchurl, libX11, libSM, SDL, libGLU_combined, expat, SDL_ttf
+, SDL_image, zlib, libXxf86misc }:
 stdenv.mkDerivation rec {
-  version = "4.7.3";
   name = "xpilot-ng-${version}";
-  inherit buildInputs;
+  version = "4.7.3";
   src = fetchurl {
     url = "mirror://sourceforge/xpilot/xpilot_ng/${name}/${name}.tar.gz";
     sha256 = "02a7pnp88kh88fzda5q8mzlckk6y9r5fw47j00h26wbsfly0k1zj";
   };
-  meta = {
-    inherit version;
-    description = ''A multiplayer X11 space combat game'';
+  buildInputs = [
+    libX11 libSM SDL SDL_ttf SDL_image libGLU_combined expat zlib libXxf86misc
+  ];
+  meta = with stdenv.lib; {
+    description = "A multiplayer X11 space combat game";
     homepage = http://xpilot.sf.net/;
-    license = stdenv.lib.licenses.gpl2Plus ;
-    maintainers = [stdenv.lib.maintainers.raskin];
-    platforms = stdenv.lib.platforms.linux;
+    license = licenses.gpl2Plus;
+    maintainers = [ maintainers.raskin ];
+    platforms = platforms.linux;
   };
 }