Log message:
mail/mailutils: update to version 3.18

# Noteworthy changes in this release:

* New debugging shortcut: all

Using "all" in mailutils debug level specification enables all debugging
categories.  Syntactically, "all" can be used wherever an actual category
name is allowed, thus, e.g., "all.!=prot" enables all levels except
"prot" in all debugging categories.

* mail: fix and document interaction between mailutils configuration
files and mail command files.

* Bugfixes

** Minor fix in handling the EHLO command in smtp client.
** Improve docs.
** Minor fix in mhn and related tests.
** mail utility: use the "mailer" configuration capability.

Log message:
*: recursive bump for icu 76 shlib major version bump

Log message:
*: revbump for icu downgrade

Log message:
*: recursive bump for icu 76.1 shlib bump

Log message:
mailutils: add dependency on p11-kit

Log message:
revbump after icu and protobuf updates

Log message:
*: recursive bump for gnutls p11-kit option

(existing installations need the bl3.mk included, but it's now only
optionally included)

Log message:
Use MASTER_SITE_GNU

Log message:
mail/mailutils: update to 3.17

Noteworthy changes in this release:

* Use of TLS in pop3d and imap4d

If not explicitly specified, the TLS mode to use (ondemand, connect,
etc.) is derived from the configured port.  E.g., for imap4d, port 143
implies ondemand mode, and port 993 implies connection mode.

The global tls-mode setting is used only when the mode cannot be
detemined
otherwise, i.e. neither per-server tls-mode is given nor the port gives
any clues as to the TLS mode to use.

* Bugfixes

** movemail: fix handling of -P option.
** Improve file safety checking routine.
** Fix compilation with new gcc versions.

Log message:
*: recursive bump for icu 74.1