Log message:
*: recursive bump for icu 74.1

Log message:
swirc: update to 3.4.6.

## [3.4.6] - 2023-11-05 ##
- **Added** adoption of SPDX-tags for the distributed manual pages
- **Added** better detection of server Wallops
- **Added** command-line option `-S` (Force TLS)
- **Added** event 249 (`RPL_STATSDEBUG`)
- **Added** extensive use of the `CPPFLAGS` make macro
- **Added** handling of empty user@host combinations in Wallops messages
- **Added** handling of znc messages. (Made them look like notices and
  appear in the active window.)
- **Added** protection for bad filenames for IRC logs
- **Added** translations
- **Changed** the way of recognizing a user mode versus channel mode
- **Did** code improvements
- **Fixed** occurrences of hardcoded function names in messages
- **Fixed** typos in manual pages
- **Improved** C++ exception handling
- **Limited** notification messages in length

## [3.4.5] - 2023-09-14 ##
- **Added** command-line option `-W`
- **Added** tab completion for:
  - `/cs`, `/chanserv`
  - `/ns`, `/nickserv`
  - `/squery`
- **Added** the following commands:
  - `/admin`
  - `/die`
  - `/gline`
  - `/info`
  - `/ison`
  - `/kline`
  - `/rehash`
  - `/restart`
  - `/servstats`
  - `/wallops`
- **Added** the following events:
  - 211 (`RPL_STATSLINKINFO`)
  - 212 (`RPL_STATSCOMMANDS`)
  - 216 (`RPL_STATSKLINE`)
  - 219 (`RPL_ENDOFSTATS`)
  - 242 (`RPL_STATSUPTIME`)
  - 256 (`RPL_ADMINME`)
  - 257 (`RPL_ADMINLOC1`)
  - 258 (`RPL_ADMINLOC2`)
  - 259 (`RPL_ADMINEMAIL`)
  - 303 (`RPL_ISON`)
  - 371 (`RPL_INFO`)
  - 374 (`RPL_ENDOFINFO`)
- **Added** translations
- **Did** code improvements

Log message:
*: bump for openssl 3

Log message:
swirc: update to 3.4.4.

## [3.4.4] - 2023-07-29 ##
- **Added** a man page that describes how to write themes.
- **Added** and made use of a pointer validation function.
- **Added** improved unicode support in the **printtext** and **readline** modules.
- **Added** usage of a binary search algorithm.
- **Added** validation of nicknames before they go into the names hash
  table.
- **Allowed** the names htbl modify API to alter names even if the list is
  incomplete. (But only in ICB mode.)
- **Changed** the file suffix for theme files from `.the` to
  `.thm`. (`.the` looks too much like the English word "the".)
- **Closed** an open stream before exit
- **Defined** noreturn for C++ in `fallbackattrs.h`
- **Fixed** hardcoded function names in error messages
- **Fixed** unchecked return values
- And more...

Log message:
chat: Where possible, adjust packages to use USE_(CC|CXX)_FEATURES

Log message:
*: remove all instances of GCC_REQD where my name is the most recent in
"cvs annotate" (part 1)

Hopefully this commit can be reviewed later if a better replacement
for GCC_REQD is committed.

Log message:
swirc: Require a C++17 compiler.

Log message:
revbump after textproc/icu update

Log message:
swirc: update to 3.4.3.

## [3.4.3] - 2023-03-10 ##
- **Added** code improvements:
  - **Added** constructors/destructors
  - **Added** improved algorithms
  - **Added** usage of initializer lists
  - **Added** usage of new/delete
  - **Deleted** unused includes
  - ...
- **Added** event `320` (the same as `275` and `671`, whois ssl)
- **Added** MULTIPLE new translations

Log message:
swirc: update to 3.4.2.

## [3.4.2] - 2023-02-22 ##
- Added usage of typedefs (`STRING`, `CSTRING`, `errno_t`, ...)
- Fixed printtext() bugs due to not checking if the wide character
  passed to `wcrtomb_s()` or `wcrtomb()` is a null character.