warsow: add missing libX11

Grimmauld f7341106 a0bdc22e

+2
+2
pkgs/games/warsow/engine.nix
··· 13 13 libpng, 14 14 SDL2, 15 15 libGL, 16 + libX11, 16 17 openal, 17 18 zlib, 18 19 }: ··· 52 53 libjpeg 53 54 SDL2 54 55 libGL 56 + libX11 55 57 openal 56 58 zlib 57 59 libpng