2020-12-31 devel/llvm60: Uses Python 2.7 which is EOLed upstream

- Wordsmith the comment.
- Remove a comment about switching to CHEESESHOP. Let's stick to the actual
  upstream repository so that we have access to examples and tests.
- Use SETENV and TEST_ENV for the do-test target for consistency with other
  ports.

Release notes:
https://github.com/Grokzen/pykwalify/releases/tag/1.8.0

There was an important release of abi-dumper with fixes
in November 2020; otherwise the compatibility results using
"new" style are bogus.

Not taking this port as I don't think it's useful enough on FreeBSD;
clang-compatibility is an issue and parts of the tool demand
gcc 4.5.8 (the port doesn't handle that gracefully either).

The programming/scripting language that incorporates the most frustrating
combination of deficiencies and awesome power is probably the POSIX shell with
accompanying utilities, which all exist in several variant implementations. Due
to said power, the shell refuses to die as a scripting language. But when
scripters are bitten by arcane grammar pitfalls, defective tutorials on the
web, or shell functionality deficits, then 'use a real programming language
instead' is generally the mantra.

Enter modernish, a new vision on shell scripting. Modernish aims to provide a
standard library that allows for writing robust, portable, readable, and
powerful programs for POSIX-based shells and utilities. It can solve the shell
language problems mentioned above, and many more. With modernish, you'd almost
think the shell has become a modern programming language!

The library builds on the POSIX 2018 Edition standard, so it should run on any
sufficiently POSIX-compliant shell and operating system. But it also takes
advantage of certain shell-specific enhancements if it detects them.

WWW: https://github.com/modernish/modernish

Differential Revision:	https://reviews.freebsd.org/D19350

Remove MANIFEST files for 13.0-BETA3.

MFH:		2021Q1
Sponsored by:	Rubicon Communications, LLC ("Netgate")

Changes:	https://github.com/johanmalm/labwc/compare/db4249d...0.1.0

Same patch that other GCC ports use.

MFH:		2021Q1

Reported by:	portscout

Reported by:	portscout

Numerous small bug fixes and enhancements, code refactoring

py-xopen: Update to 1.1.0

Required by cutadapt 3.3
Drop python 3.5 support
Add isal support (not yet utilized in FreeBSD port)

Details:
- Bugs and doc fixes, see
  https://github.com/traefik/traefik/releases/tag/v2.4.6

MFH:		2021Q1

* Add shells/bash-completion, which was a transitive dependency via
  security/p11-kit until r566543, to BUILD_DEPENDS to fix packaging issues.

Approved by:	portmgr (build fix)

Changelog:	https://forums.plex.tv/t/plex-media-server/30447/406

Changelog:	https://forums.plex.tv/t/plex-media-server/30447/403

- Drop do-build and INSTALL_FILES in favor of GO_TARGET
- Install release_signer which was built but never installed

Approved by:	swills
Differential Revision:	https://reviews.freebsd.org/D29079

PR:		253815
Approved by:	portmgr (build fix)

* Partially revert r559080 as only one shared library gets the new
  PYTHON_EXT_SUFFIX extension if built with Python 3.8.

PR:		253815
Approved by:	python (with hat)

* Apply the same fix as in r559094 by stripping libraries by wildcard paths.

* Also use PYTHONPREFIX_SITELIBDIR instead PYTHON_SITELIBDIR to make the
  port PREFIX safe while I'm here.

PR:		253815
Approved by:	python (with hat)

* Apply the same fix as in r559094 by stripping libraries by wildcard paths.

PR:		253815
Approved by:	python (with hat)

* Apply the same fix as in r559094 by stripping libraries by wildcard paths.

* Also use PYTHONPREFIX_SITELIBDIR instead PYTHON_SITELIBDIR to make the
  port PREFIX safe while I'm here.

PR:		253815
Approved by:	python (with hat)

* Also pet portlint by replacing PLIST_FILES entries with make variables.

PR:		253815
Approved by:	python (with hat)

Submitted by:	Tadeusz Struk <tadeusz.struk@intel.com> (maintainer)
Differential Revision:	https://reviews.freebsd.org/D29053

Submitted by:	Tadeusz Struk <tadeusz.struk@intel.com> (maintainer)
Differential Revision:	https://reviews.freebsd.org/D29052

Submitted by:	Tadeusz Struk <tadeusz.struk@intel.com> (maintainer)
Differential Revision:	https://reviews.freebsd.org/D29051

PR:		253815
Approved by:	python (with hat)

* Also sort some variables according the PHB and fix indents.

Changelog:

https://github.com/DataDog/integrations-core/blob/7.24.0/AGENT_CHANGELOG.md

PR:		252593
Submitted by:	Uroš Gruber (maintainer)
Reviewed by:	fernape

PR:		253962
Reported by:	David Siebörger <drs-freebsd@sieborger.nom.za>
MFH:		2021Q1

Changelog: https://cran.r-project.org/web/packages/ggrepel/news/news.html

PR:		254023
Submitted by:	Zsolt Udvari <uzsolt@uzsolt.hu> (maintainer)

- Convert port to USES=localbase
- SSilence portlint warnings about variables order

PR:		254031
Approved by:	mjl@luckie.org.nz (maintainer)
MFH:		2021Q1

Suggested by:	pkubaj@