Installs a man page for _TTF_Font(3type)

[smcv]

When API documentation (manual pages) is enabled, wikiheaders sees

typedef struct _TTF_Font TTF_Font;

and generates a _TTF_Font man page. This seems probably unintended.

Am I correct to think that SDL's coding style is to make the struct tag be the same name as the typedef, more like this?

typedef struct TTF_Font TTF_Font;

Or, wikiheaders could assume that symbols starting with an underscore are meant to be private and ignore them.

[smcv]

Similarly libsdl-org/SDL_mixer installs _Mix_Music.3type.

[slouken]

Fixed, thanks!