git: calendar(1): Rewrite to support Chinese & Julian calendars

[Steffen Nurpmeso]

Aaron LI wrote in
 <20200904162215.BB319BFF569 at crater.dragonflybsd.org>:
 |commit d19ef5a274debcb71f2e8cd8dce8b954dc73944b
 |Author: Aaron LI <aly at aaronly.me>
 |Date:   Sun Aug 2 22:17:59 2020 +0800
 |
 |    calendar(1): Rewrite to support Chinese & Julian calendars

I have not yet tried it out, but cloned the repo yesterday right
away and think it is _tremendous_ that this piece of software is
not only kept, but even improved!
Thanks!

--steffen
|
|Der Kragenbaer,                The moon bear,
|der holt sich munter           he cheerfully and one by one
|einen nach dem anderen runter  wa.ks himself off
|(By Robert Gernhardt)