Fixed two old identifiers in header comments.

include/SDL_keyboard.h

@@ -136,7 +136,7 @@ extern DECLSPEC SDL_Scancode SDLCALL SDL_GetScancodeFromName(const char *name);
  *          copy it.  If the key doesn't have a name, this function returns an
  *          empty string ("").
  *
- *  \sa SDL_Key
+ *  \sa SDL_Keycode
  */
 extern DECLSPEC const char *SDLCALL SDL_GetKeyName(SDL_Keycode key);
 

include/SDL_video.h

@@ -789,7 +789,6 @@ extern DECLSPEC int SDLCALL SDL_UpdateWindowSurface(SDL_Window * window);
  *  \return 0 on success, or -1 on error.
  *
  *  \sa SDL_GetWindowSurface()
- *  \sa SDL_UpdateWindowSurfaceRect()
  */
 extern DECLSPEC int SDLCALL SDL_UpdateWindowSurfaceRects(SDL_Window * window,
                                                          const SDL_Rect * rects,