init_sdl_audio() function header refers to already dropped "gui-sdl"
init_sdl_audio() function header talks about "gui-sdl" that no longer exist. The text is otherwise relevant for gui-sdl2, though, so probably we should just mention it, instead.
init_sdl_audio() function header talks about "gui-sdl" that no longer exist. The text is otherwise relevant for gui-sdl2, though, so probably we should just mention it, instead.