apr: Merge r1889604, r1807975 from trunk:

* random/unix/sha2.c (apr__SHA256_Final, apr__SHA256_End): Fix parameter
buffer lengths to match declaration, avoiding GCC 11 warning.
(no functional change)

Bounds-check human-readable date fields (credit: Stefan Sperling)

Submitted by: jorton, niq
Reviewed by: jorton

(cherry picked from commit fc1b69d0311e50ed05c00c46ad7dd5d560e57cb6)

Git Hash: 159a0e32d58f9e7b8d511571935df21f4bfc02a9
Git Author: jorton@apache.org

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

Introduce svnlite so that we can check out our source code again.

This is actually a fully functional build except:
* All internal shared libraries are static linked to make sure there
is no interference with ports (and to reduce build time).
* It does not have the python/perl/etc plugin or API support.
* By default, it installs as "svnlite" rather than "svn".
* If WITH_SVN added in make.conf, you get "svn".
* If WITHOUT_SVNLITE is in make.conf, this is completely disabled.

To be absolutely clear, this is not intended for any use other than
checking out freebsd source and committing, like we once did with cvs.

It should be usable for small scale local repositories that don't
need the python/perl plugin architecture.

Import apache apr-1.4.6