for now, don't wait for keypress in mandelbrot.c

mandelbrot.c

@@ -83,6 +83,7 @@ int main(void) {
   }
 
   /* Quit. */
-  SDL_Delay(20000);
+  /* FIXME: wait for key press here */
+  SDL_Delay(0*20000);
   SDL_Quit();
 }