Make UpdateSurface idiomatic with respect to errors
Make UpdateSurface idiomatic with respect to errors

Abextm/go-sdl2,phicode/go-sdl2,rakyll/go-sdl2,jangler/go-sdl2,gcatlin/go-sdl2,Abextm/go-sdl2,veandco/go-sdl2,krux02/go-sdl2,krux02/go-sdl2,gcatlin/go-sdl2,jangler/go-sdl2,rakyll/go-sdl2,rakyll/go-sdl2,rakyll/go-sdl2,gcatlin/go-sdl2,Abextm/go-sdl2,krux02/go-sdl2,veandco/go-sdl2,phicode/go-sdl2,jangler/go-sdl2,phicode/go-sdl2