Remove expired ports:

2021-04-01 ftp/wzdftpd: Unmaintained and dead upstream, does not build with
-fno-common (llvm 11)
2021-04-01 astro/roadmap: Unmaintained and dead upstream, does not build with
-fno-common (llvm 11)
2021-04-01 games/cosmo: Unmaintained and dead upstream, does not build with
-fno-common (llvm 11)
2021-04-01 games/bomberinstinct: Unmaintained and dead upstream, does not build
with -fno-common (llvm 11)
2021-04-01 games/drm: Unmaintained and dead upstream, does not build with
-fno-common (llvm 11)
2021-04-01 games/bygfoot: Unmaintained and dead upstream, does not build with
-fno-common (llvm 11)
2021-04-01 games/cre: Unmaintained and dead upstream, does not build with
-fno-common (llvm 11)
2021-04-01 irc/hybserv: Unmaintained and dead upstream, does not build with
-fno-common (llvm 11)
2021-04-01 irc/xaric: Unmaintained and dead upstream, does not build with
-fno-common (llvm 11)
2021-04-01 mail/elmo: Unmaintained and dead upstream, does not build with
-fno-common (llvm 11)
2021-04-01 misc/cave: Unmaintained and dead upstream, does not build with
-fno-common (llvm 11)
2021-04-01 security/bugs: Unmaintained and dead upstream, does not build with
-fno-common (llvm 11)
2021-04-01 security/dmitry: Unmaintained and dead upstream, does not build with
-fno-common (llvm 11)

Remove # $FreeBSD$ from Makefiles.

Extend expiration of ports broken with -fno-common

Extend the expiration of unmaintained leaf ports that are broken with
-fno-common and previously had a short expiration date.  The new date is set
to 2021-04-01, meaning the ports will be in the 2021Q2 branch, giving people
until 2021-06-30 (10 months from now) to fix issues.
Improve the wording of the deprecation message, mentioning both llvm 11 and
-fno-common.
Bump portrevision to force reinstall.  This way the warning message about
deprecation will be displayed to users installing or reinstalling the
software.

MFH:		2020Q3 (maybe)

audio/: Fix build with clang11 and deprecate ports@ ports

Cleanup patches, a* categories.

Rename them to follow the make makepatch naming, and regenerate them.

With hat:	portmgr
Sponsored by:	Absolight

- Add empty directory to plist

Cleanup plist

Rename audio/ patch-xy patches to reflect the files they modify.

- Remove NO_STAGE as these have been tested to be safe

With hat:	portmgr

Add NO_STAGE all over the place in preparation for the staging support (cat:
audio)

- Get Rid MD5 support

Replace ugly "@unexec rmdir %D... 2>/dev/null || true" with @dirrmtry

- Add some SHA256 checksums

- Make it fetchable again.

Reported by:    Distfiles survey

Add SIZE.

Reset unreachable MAINTAINERs to ports@FreeBSD.org

PR:             59109
Approved by:    marcus (mentor)

Bug in audio/shout when using with SHOUTcast Server 1.9.2

        Shout is streaming client for icecast and shoutcast streaming
        servers.  It works well with SHOUTcast Server Version
        1.9.2/FreeBSD4 (with -i key (Use old icy headers)),But if
        you try to enable title streaming (-t key) (without it
        clients don't see what song is playing). There are two
        problems why it doesn't work:

        1. By default shoutcast expects source stremer connection
        on 8001 port, and listeners on 8000 port. (steamer port is
        listener_port+1). Shout streams mp3 music on port 8001 (from
        config file or command line), but title streaming is done
        on listener port through web admin interface.
        (http://server:port//admin.cgi?pass=password&;mode=updinfo&song=Song

De-pkg-comment.

Convert category audio to new layout.  

Add shout, a program that sends mp3 streams to icecast/shoutcast servers.