- Copy stable/10 (r259064) to releng/10.0 as part of the
10.0-RELEASE cycle.
- Update __FreeBSD_version [1]
- Set branch name to -RC1

[1] 10.0-CURRENT __FreeBSD_version value ended at '55', so
start releng/10.0 at '100' so the branch is started with
a value ending in zero.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

mdoc(7) police: Make SYNOPSIS match usage().

Approved by: re (blanket)

Add an option to print the time in 12-hour format.

Submitted by: Samy Al Bahra <samy@kerneled.com>

mdoc(7) police: Added the missing .Os call; it's not strictly
necessary nowadays, but is documented as "required", and may
become so again in the future.

Approved by: re

- Only use sig_atomic_t objects in signal handlers.
- Use getopt() to parse command line.
- Add usage().
- WARNSify.
- Convert manpage to mdoc(7).

PR: bin/30641
Submitted by: Andrey Simonenko <simon@simon.org.ua>, ru
MFC after: 1 week

gdc -> grdc

This commit was generated by cvs2svn to compensate for changes in r4974,
which included commits to RCS files with non-trunk default branches.

Re-import with new name, old name conflicts with gated