shells/elvish: Update 0.20.1 → 0.21.0, add to /etc/shells

Changelog:
https://elv.sh/blog/0.21.0-release-notes.html

- Add to /etc/shells.
- Remove GH_PROJECT equal to PORTNAME.

PR:		281272
Approved by:	Adam Jimerson <vendion@gmail.com>

shells/elvish: fix enchance version information

The instructions for how to enhance Elvish's version information has
changed.

While I'm here remove empty line from GH_TUPLE.

PR:		277194
Approved by:	Adam Jimerson <vendion@gmail.com> (maintainer)

all: Bump after lang/go121 update

all: Bump after lang/go121 update

all: Bump after lang/go121 update

MFH:		2024Q2

all: Bump after lang/go121 update

MFH:		2024Q2

all: Bump after lang/go121 update

MFH:		2024Q2

lang/go: Change DEFAULT to 1.21

PR:		277776
Approved by:	portmgr (exp-run)

shells/elvish: Update to 0.20.1

PR:		277092

all: Bump PORTREVISION after lang/go* update

PR:		276530

all: Bump PORTREVISION after lang/go* update

PR:		274405

shells/elvish: Update to v0.19.2

ChangeLog: https://elv.sh/blog/0.19.1-release-notes.html

 * A new doc module provides access to the documentation of builtin modules.
 * A new conj command “appends” values to a list, and has a guaranteed time
   complexity independent of the size of the list.
 * A new inexact-num converts its argument to an inexact number.
 * It is functionally identical to the now deprecated float64 command since the
   Go float64 type is the only underlying inexact number type for now. Its
   behavior may change in future if there are more underlying types for inexact
   numbers.
 * A new type of interactive abbreviation: edit:command-abbr
 * The order and compare commands now support boolean values
 * A new path:join command and path:separator and path:list-separator variables

all: Bump PORTREVISION after lang/go* update

all: Bump PORTREVISION after lang/go{119,120} update

all: Bump PORTREVISION after lang/go{119,120} update

shells/elvish: fix build on riscv64

Bump golang.org/x/sys dependency to a version new enough
to support riscv64-freebsd.

Sponsored by:	Berliner Linux User Group e.V.
Approved by:	portmgr (build fix blanket)

all: Bump PORTREVISION after Go ports update

all: Bump PORTREVISION after lang/go{119,120} update

all: Bump PORTREVISION after GO_DEFAULT update.

all: Bump PORTVERSION after lang/go{118,119} update

all: Bump PORTREVISION after lang/go{118,119} update

all: Bump PORTREVISION after lang/go{118,119} update

all: Bump PORTREVISION after lang/go{118,119} update

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.

all: Bump PORTREVISION after Go update

Bump Go ports PORTREVISION after GO_DEFAULT and lang/go118 update.

all: Bump PORTREVISION after lang/go{117,118} update

*/*: Bump port revisons after lang/go{117,118} update

*/*: Bump PORTREVISION after lang/go 1.18 update

shells/elvish: update to 0.17.0

Changelog: https://elv.sh/blog/0.17.0-release-notes.html

PR:		260621
Reported by:	Adam Jimerson <vendion@gmail.com> (maintainer)

shells/elvish: Add CPE information

Approved by:	portmgr (blanket)

shells/elvish: Update elvish to v0.16.3

ChangeLog: https://elv.sh/blog/0.16.0-release-notes.html

PR:	258415
Reported by:	vendion@gmail.com (maintainer)

One more small cleanup, forgotten yesterday.
Reported by:	lwhsu

Remove # $FreeBSD$ from Makefiles.

shells/elvish: Update Elvish to v0.15.0

ChangeLog: https://elv.sh/blog/0.15.0-release-notes.html

PR:	253145
Submitted by:	vendion@gmail.com (maintainer)

shells/elvish: Update to 0.14.1

- pet portclippy while here

Changes:	https://github.com/elves/elvish/releases/tag/v0.14.1
PR:		248700
Submitted by:	Adam Jimerson <vendion@gmail.com> (maintainer)

Update to 0.14.0

PR:		247793
Submitted by:	Adam Jimerson <vendion@gmail.com> (maintainer)

shells/elvish: update to 0.13.1

This also changes the port to use the vendored deps

PR:		245349
Approved by:	Adam Jimerson (maintainer)

shells/elvish Update Elvish to v0.13

Changelog: https://elv.sh/blog/0.13-release-notes.html

PR:		243044
Submitted by:	Adam Jimerson <vendion@gmail.com> (maintainer)

shells/elvish: Set version information, omit debug info

PR:		241446
Approved by:	Adam Jimerson <vendion@gmail.com> (maintainer), araujo (mentor)
Differential Revision:	https://reviews.freebsd.org/D22149

shells/elvish: Remove custom targets

Remove custom do-build and do-install targets, go.mk already provides them.

Approved by:	tz (mentor)
Differential Revision:	https://reviews.freebsd.org/D22005

New port shells/elvish

Elvish is a friendly interactive shell and an expressive programming language.

PR:		237480
Submitted by:	Adam Jimerson <vendion@gmail.com>