Typedefs starting with `f' in bsd4-4

• fd_mask sys/types.h:130
• fdntype miscfs/fdesc/fdesc.h:61
• fd_set sys/types.h:139
• fhandle_t sys/mount.h:186
• FINFO ufs/lfs/lfs.h:74
• fixpt_t sys/types.h:64
• fsid_t sys/mount.h:44