emscripten: Typo

src/video/emscripten/SDL_emscriptenevents.c

@@ -558,7 +558,7 @@ Emscripten_HandleFullscreenChange(int eventType, const EmscriptenFullscreenChang
         window_data->requested_fullscreen_mode = 0;
 
         if(!window_data->requested_fullscreen_mode)
-            window_data->window->flags |= SDL_WINDOW_FULLSCREEN; /*we didn't reqest fullscreen*/
+            window_data->window->flags |= SDL_WINDOW_FULLSCREEN; /*we didn't request fullscreen*/
     }
     else
     {