CVS: cvs.openbsd.org: src

[Visa Hankala]

CVSROOT:        /cvs
Module name:    src
Changes by:     v...@cvs.openbsd.org    2017/04/20 06:59:36

Modified files:
        sys/conf       : files 
        sys/ddb        : db_command.c 
        sys/kern       : init_main.c kern_exit.c kern_fork.c kern_sig.c 
        sys/sys        : proc.h 
Added files:
        sys/kern       : subr_witness.c 
        sys/sys        : _lock.h witness.h 

Log message:
Add a port of witness(4) lock validation tool from FreeBSD.

Go-ahead from kettenis@, guenther@, deraadt@