mail/panda-cclient: fix build with clang 16

Clang 16 has a new error about incompatible function types, which shows
up when building mail/panda-cclient:

  news.c:370:36: error: incompatible function pointer types passing 'int (struct
dirent *)' to parameter of type 'int (*)(const struct dirent *)'
[-Wincompatible-function-pointer-types]
    if ((nmsgs = scandir (tmp,&names,news_select,news_numsort)) >= 0) {
                                     ^~~~~~~~~~~
  /usr/include/dirent.h:127:12: note: passing argument to parameter here
              int (*)(const struct dirent *), int (*)(const struct dirent **,
                    ^
  news.c:370:48: error: incompatible function pointer types passing 'int (const
void *, const void *)' to parameter of type 'int (*)(const struct dirent **,
const struct dirent **)' [-Wincompatible-function-pointer-types]
    if ((nmsgs = scandir (tmp,&names,news_select,news_numsort)) >= 0) {
                                                 ^~~~~~~~~~~~
  /usr/include/dirent.h:127:44: note: passing argument to parameter here

Remove WWW entries moved into port Makefiles

Commit b7f05445c00f has added WWW entries to port Makefiles based on
WWW: lines in pkg-descr files.

This commit removes the WWW: lines of moved-over URLs from these
pkg-descr files.

Approved by:		portmgr (tcberner)

Add WWW entries to port Makefiles

It has been common practice to have one or more URLs at the end of the
ports' pkg-descr files, one per line and prefixed with "WWW:". These
URLs should point at a project website or other relevant resources.

Access to these URLs required processing of the pkg-descr files, and
they have often become stale over time. If more than one such URL was
present in a pkg-descr file, only the first one was tarnsfered into
the port INDEX, but for many ports only the last line did contain the
port specific URL to further information.

There have been several proposals to make a project URL available as
a macro in the ports' Makefiles, over time.

mail: remove 'Created by' lines

A big Thank You to the original contributors of these ports:

  *  <ashish@FreeBSD.org>
  *  Aaron Dalton <aaron@FreeBSD.org>
  *  Adam David <adam@FreeBSD.org>
  *  Adam McDougall <mcdouga9@egr.msu.edu>
  *  Adam Weinberger <adamw@FreeBSD.org>
  *  Ade Lovett <ade@FreeBSD.org>
  *  Akinori MUSHA aka knu <knu@idaemons.org>
  *  Alex Deiter <tiamat@komi.mts.ru>
  *  Alex Dupre <ale@FreeBSD.org>
  *  Alex Dupre <sysadmin@alexdupre.com>
  *  Alex Perel <veers@disturbed.net>

mail/panda-cclient: catch-up with the latest patches

Nothing has been released yet, but some interesting patches have been committed.
See <https://github.com/nkhorman/panda-imap/commits/master>.

Remove # $FreeBSD$ from Makefiles.

Drop the ipv6 virtual category for m* category as it is not relevant anymore

onvert to UCL & cleanup pkg-message (categories l-m)

Remove a duplicate patch.

Reported by:	fluffy

Fix in head and with openssl-devel.

Obtained from:	openembedded/meta-openembedded

After an include, PLIST_SUB must be appended to, not overwritten.

If it is overwritten, many values will be clobbered, and
pain will ensue.

PR:		230864
Submitted by:	mat
exp-runs by:	antoine

Remove all USE_OPENSSL occurrences.

Sponsored by:	Absolight

Mark some ports as not openssl-devel ready.

Sponsored by:	Absolight

- Unbreak this port

Approved by:	portmgr (blanket)

Update ports in the [i-m]* category to not use GH_COMMIT.

With minor cleanups to make things simpler.

With hat:	portmgr
Sponsored by:	Absolight

Change the WWW: line to avoid confusion.

Suggested by:	bapt

Adding mail/panda-cclient and mail/panda-imap.

Since Mark Crispin left the UW, development on UW-IMAP paused. Mark
however continued developing the toolkit under the name Panda-IMAP.
Since Mark passed, Jonathan Abbey created a project on GitHub, by
concatenating all of the public releases of UW IMAP with the last
version of Panda IMAP.

Add conflict lines with the original ports.