Log Message:
Update pure-ftpd to version 1.0.21 and add an option for (experimental) utf8-
support, from unex@linija.org via PR pkg/32901.

Changes:

* When SHA1HANDSOFF is defined, we shouldn't cast a pointer to a large union to
  a char buffer, because of alignment required by some architectures.
* WITH_THROTTLING should actually be THROTTLING in src/log_extauth.c . It fixes
  throttling with extauth. Reported and fixed by Marcus Merighi <mcmer@tor.at>
  through Brad our beloved OpenBSD maintainer.
* Rendezvous has been renamed Bonjour.
* A double-close in the CHMOD command has been fixed.
* The old PAM sample has been removed.
* -F option added to pure-pw.
* MAX_USER_LENGTH has been bumped to 127 due to popular demand.
* pam/* can now be used if security/* doesn't exist. Fixes PAM detection on
  MacOS X.
* Call tzset() in chrooted apps in order to get correct time zones in syslog
  messages.
* simplify() simplifies paths ending by /. and /..
* MySQL's hash_password() needs 3 arguments since mySQL 4.1.
* Experimental support for RFC2640 (UTF-8 filename encoding) has been added,
  derived from code by Jui-Nan Lin  ===>  added as "utf8" pkgsrc option.
* The LDAP schema has been changed: FTPStatus should be a boolean.
* New switch: -p (--pidfile=) for pure-authd and pure-uploadscript, by Old
  Sparky.
* By popular request, even non-chrooted users are now denied access if their
  home directory is not mounted.
* If die() is called during a TLS-enabled session, encrypt the death message.
  Contributed by Cynix.
* Don't wrongly abort transfer during file upload. Fix by Patrick Gosling.
* WITH_LARGE_FILES is now defined by default.
* sendfile64() support on Linux.
* privsep and main processes were swapped out so that pure-ftpwho displays the
  right pid.
* OPTS MLST has been implemented.
* SITE UTIME has been implemented.
* TCP_CORK is on by default again. A new configure switch, --without-cork, can
  disable it.
* Correctly format %c and %% in fakesprintf().
* The connection socket is now created with the Nagle algorithm disabled.  It
  was the trick to dramatically improve performance when transfering a lot of
  small files.
* Updated getopt_long() and realpath() substitutes.
* Allow logging to named pipes (thanks to Steve Marple).
* Use CLIENT_MULTI_STATEMENTS while connecting to a MySQL server.
* Documentation updates.
* MySQL errors are now logged.