logstalgia: add missing libX11

Grimmauld db355161 e2970e59

+2
+2
pkgs/by-name/lo/logstalgia/package.nix
··· 12 glew, 13 libGLU, 14 libGL, 15 boost, 16 glm, 17 freetype, ··· 33 ftgl 34 libpng 35 libjpeg 36 pcre 37 SDL2_image 38 libGLU
··· 12 glew, 13 libGLU, 14 libGL, 15 + libX11, 16 boost, 17 glm, 18 freetype, ··· 34 ftgl 35 libpng 36 libjpeg 37 + libX11 38 pcre 39 SDL2_image 40 libGLU