Typedefs starting with `s' in BSD4-4

• SEGSUM ufs/lfs/lfs.h:210
• segsz_t sys/types.h:65
• SEGUSE ufs/lfs/lfs.h:56
• SeqNum netiso/tp_param.h:250
• sig_atomic_t i386/include/signal.h:40
• sigset_t sys/signal.h:105
• simple_lock_data_t vm/lock.h:82
• simple_lock_t vm/lock.h:83
• size_t sys/types.h:95
• speed_t sys/termios.h:179
• sq_dev dev/scsi/scsivar.h:101
• ss_flags sys/signal.h:145
• ssize_t sys/types.h:100
• sw_blk_t vm/swap_pager.h:72
• sw_bm_t vm/swap_pager.h:66
• sw_pager_t vm/swap_pager.h:85
• swp_clean_t vm/swap_pager.c:91