Mark BROKEN: fails to build

In file included from /wrkdirs/usr/ports/games/instead/work/instead-3.3.0/src/SDL_anigif.c:24:
In file included from /wrkdirs/usr/ports/games/instead/work/instead-3.3.0/src/SDL_anigif.h:59:
/usr/local/include/SDL2/close_code.h:30:2: error: close_code.h included without matching begin_code.h

Reported by: pkg-fallout