lincityNg: turn off format hardening

pkgs/games/lincity/ng.nix

@@ -15,13 +15,15 @@ let s = # Generated upstream information
   };
   buildInputs = [zlib jam pkgconfig gettext libxml2 libxslt xproto libX11 mesa 
     SDL SDL_mixer SDL_image SDL_ttf SDL_gfx physfs];
-in 
+in
 stdenv.mkDerivation rec {
   inherit (s) name version;
   src = fetchurl {
     inherit (s) url sha256;
   };
 
+  hardening_format = false;
+
   inherit buildInputs;
 
   buildPhase = "jam";