Remove expired ports:

2020-04-30 net-mgmt/bgpq: Use net-mgmt/bgpq3 or net-mgmt/bgpq4
2020-04-30 net/boringtun: Status of the project and motivation is unclear

lang/rust: Update to 1.43.0

- Add workaround to fix build when CC/CXX have "clang" in them [1]
- Respect AR to fix build with external toolchains [2]
- Force rebuild all consumers to catch regressions early

Changes:	https://blog.rust-lang.org/2020/04/23/Rust-1.43.0.html
PR:		238556 [1], 245583 [2]
Reported by:	Matthias Apitz <guru@unixarea.de> [1], Greg V
<greg@unrelenting.technology> [2]
Tested by:	mikael, pkubaj, tobik
With hat:	rust
Differential Revision:	https://reviews.freebsd.org/D24521

net/boringtun: Bring back IGNORE to avoid building it on the package builders

Reported by:	mat@

net/boringtun: Mark as DEPRECATED with a one month expiration date since
the port was marked as IGNORE almost a full year now

lang/rust: Update to 1.38.0

- Force rebuild all consumers to catch regressions early

Thanks to Mikael Urankar for providing updated bootstraps for
aarch64, armv6, armv7, powerpc64.

Changes:	https://blog.rust-lang.org/2019/09/26/Rust-1.38.0.html
Tested by:	jbeich, mikael.urankar@gmail.com, tobik
With hat:	rust
Differential Revision:	https://reviews.freebsd.org/D21778

Convert to UCL & cleanup pkg-message (categories n)

(and missed 3 missed files from previous categories.)

lang/rust: Update to 1.36.0

- Force rebuild all consumers to catch regressions early

Thanks to Mikael Urankar for providing updated bootstraps for
aarch64, armv6, armv7, powerpc64.

Changes:	https://blog.rust-lang.org/2019/07/04/Rust-1.36.0.html
Tested by:	jbeich, mikael.urankar@gmail.com
With hat:	rust
Differential Revision:	https://reviews.freebsd.org/D20810

lang/rust: Update to 1.35.0

- Force rebuild all consumers to catch regressions early

Thanks to Mikael Urankar for providing updated bootstraps for
aarch64, armv6, armv7, powerpc64.

Changes:	https://blog.rust-lang.org/2019/05/23/Rust-1.35.0.html
Reviewed by:	jbeich
Tested by:	pkubaj (powerpc64), mikael.urankar@gmail.com (aarch64)
With hat:	rust
Differential Revision:	https://reviews.freebsd.org/D20332

lang/rust: Update to 1.34.2

- While here add patches from [1] for LibreSSL 2.9.1 support

[1] https://github.com/sfackler/rust-openssl/pull/1097

Changes:	https://blog.rust-lang.org/2019/05/13/Security-advisory.html
Changes:	https://blog.rust-lang.org/2019/05/14/Rust-1.34.2.html
PR:		237495 [1]
Security:	37528379-76a8-11e9-a4fd-00012e582166

net/boringtun: Mark IGNORE because the first and only available release was
deleted from upstream

net/boringtun: Drop maintainership because I cannot ethically support CloudFlare
and their intentions after what I have found out. Sorry for the mistake of
bringing
it into the ports tree and opening pandoras box.

net/boringtun: Update maintainer to my FreeBSD address

Reported by:	bapt

BoringTun is an implementation of the WireGuard protocol designed for
portability and speed.

The project consists of two parts:

* The executable boringtun, a userspace WireGuard implementation for
  Linux and macOS.
* The library boringtun that can be used to implement fast and efficient
  WireGuard client apps on various platforms, including iOS and Android.
  It implements the underlying WireGuard protocol, without the network
  or tunnel stacks, those can be implemented in a platform idiomatic way.

NOTE: This crate is still undergoing review for security concerns.
Therefore, we recommend that you take caution before using it in a
production application.

WWW: https://github.com/cloudflare/boringtun