- Define exit status and macros and use them
- Improve the second kill logic by setting 'do_second_kill = false'
after configuring the second kill
- Minor style tweaks
- Reorder options in the man page, as well as the usage help
- Reorder the exit status in the man page
- Enhance the HISTORY section in the man page (obtained from NetBSD)
Reviewed by: bapt, Alexander Ziaee (manpages)
Approved by: bapt (src)
Obtained from: DragonFlyBSD
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D47866
Gordon Bergling
06690044da