[Devel] The FT_Open_Args parameter to FT_Open_Face should be const

[Graham Asher]

The function

  FT_EXPORT( FT_Error )
  FT_Open_Face( FT_Library     library,
                FT_Open_Args*  args,
                FT_Long        face_index,
                FT_Face       *aface );

should I think be

  FT_EXPORT( FT_Error )
  FT_Open_Face( FT_Library     library,
                const FT_Open_Args*  args,
                FT_Long        face_index,
                FT_Face       *aface );

I don't see any good reason for "args" being non-const.

Graham Asher