Method cleanup

library/modules/DFSDL.cpp:130–139

It's ok to leave NULLs in the raws list (according to usage in g_src)

// It's ok to leave NULLs in the raws list (according to usage in g_src)
void DFSDL::cleanup() {
    if (g_sdl_handle) {
        ClosePlugin(g_sdl_handle);
        g_sdl_handle = nullptr;
    }
    if (g_sdl_image_handle) {
        ClosePlugin(g_sdl_image_handle);
        g_sdl_image_handle = nullptr;
    }
}

SDL_Surface * DFSDL::DFIMG_Load(const char *file) {
    return g_IMG_Load(file);