Copy stable/11@r303970 to releng/11.0 as part of the 11.0-RELEASE
cycle.

Prune svn:mergeinfo from the new branch, and rename it to RC1.

Update __FreeBSD_version.

Use the quarterly branch for the default FreeBSD.conf pkg(8) repo and
the dvd1.iso packages population.

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

Copy head@r302406 to stable/11 as part of the 11.0-RELEASE cycle.
Prune svn:mergeinfo from the new branch, as nothing has been merged
here.

Additional commits post-branch will follow.

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

Fix a ton of speelling errors

arc lint is helpful

Reviewed By: allanjude, wblock, #manpages, chris@bsdjunk.com
Differential Revision: https://reviews.freebsd.org/D3337

Handle some expression regressions.
Explicitly use GNU cpp for preprocessing.
Remove explicit debugging code.
Change some variable names to be less confusing.
Improve some comments.
Improve indentation.

PR: 162211
168785
MFC after: 2 weeks

Use even more conventional conversion routines.

Reported by: peterj@

Reluctantly remove one of the most extraordinary numeric conversion
routines I have ever seen and replace with something far more boring.

Tidy up command line processing:
- Add ? option to optstring.
- Sort options alphabetically.
- Vertical space.

Tidy up usage() function.

Bring man page in sync with source.

Ensure that debug code is only executed with the -d option.

Submitted by: Christiane Yeardley

Fix run-time breakage when encoutering invalid input-data.

PR: bin/157718

Fix the interpreter for:

Jul/Sat+3 Every third saturday of July - Jul/Sat+3

which was able to be done via:

Jul/SatThird Every third saturday of July - Jul/SatThird

Add interpreters for:

SatFourth Every third saturday of each month - SatFourth
Sat+4 Every third saturday of each month - Sat+4
Sat Every saturday of each month - Sat

MFC after: 2 weeks

Fix Paskha and Paskha-specific holidays.

Fix typo (Pashka -> Paskha).

Remove extra ;

For calendars which don't match the solar-based Gregorian calendar,
be able to specify a year string in an entry.

While I am here, add more missing (unsigned char) casts to ctype() macros

On request of joel@:

- Remove the 3rd clause of the UC Berkeley copyrighted files.
- For the files added copyrighted by me, move the "All rights
reserved" to the next line.

size_t is not equivalent to int on 64-bit platforms.

Pointy hat to: edwin@

Long awaited update to the calendar system:

- Repeating events which span multiple years (because of -A, -B or
just the three days before the end of the year).

- Support for lunar events (full moon, new moon) and solar events
(equinox and solstice, chinese new year). Because of this, the
options -U (UTC offset) and -l (longitude) are available to
compensate if reality doesn't match the calculated values.

MFC after: 1 month