* gnu/packages/games.scm: Remove the deprecated
  (gnu packages avahi) module reference.
* gnu/packages/gnome.scm: Likewise.
* gnu/packages/linux.scm: Likewise.
* gnu/packages/audio.scm: Change (gnu packages avahi)
  to (gnu packages dns).
* gnu/packages/cups.scm: Likewise.
* gnu/packages/databases.scm: Likewise.
* gnu/packages/distributed.scm: Likewise.
* gnu/packages/freedesktop.scm: Likewise.
* gnu/packages/guile-xyz.scm: Likewise.
* gnu/packages/hardware.scm: Likewise.
* gnu/packages/kde-frameworks.scm: Likewise.
* gnu/packages/kodi.scm: Likewise.
* gnu/packages/linphone.scm: Likewise.
* gnu/packages/messaging.scm: Likewise.
* gnu/packages/mpd.scm: Likewise.
* gnu/packages/package-management.scm: Likewise.
* gnu/packages/printers.scm: Likewise.
* gnu/packages/pulseaudio.scm: Likewise.
* gnu/packages/radio.scm: Likewise.
* gnu/packages/robotics.scm: Likewise.
* gnu/packages/samba.scm: Likewise.
* gnu/packages/scanner.scm: Likewise.
* gnu/packages/scheme.scm: Likewise.
* gnu/packages/synergy.scm: Likewise.
* gnu/packages/telephony.scm: Likewise.
* gnu/packages/video.scm: Likewise.
* gnu/packages/vnc.scm: Likewise.
* gnu/services/avahi.scm: Likewise.
* gnu/services/desktop.scm: Likewise.

Merges: https://codeberg.org/guix/guix/pulls/8572
Reviewed-by: Maxim Cournoyer <maxim@guixotic.coop>
Reviewed-by: Ludovic Courtès <ludo@gnu.org>
Signed-off-by: Nguyễn Gia Phong <cnx@loang.net>

* gnu/services/avahi.scm (avahi-shepherd-service): Change to systemd
style.  Remove ‘--daemonize’ option and #:pid-file.  Add #:lazy-start?
and #:log-file.

Change-Id: I1915243f057ff3bbe281f46f17826f24b124f659

* gnu/services/avahi.scm (avahi-shepherd-service): Add 'actions' field.
* gnu/services/base.scm (nscd-actions): Add call to
'shepherd-configuration-action'.
* gnu/services/desktop.scm (upower-shepherd-service): Add 'actions'
field.
(elogind-shepherd-service): Likewise.
* gnu/services/dict.scm (dicod-shepherd-service): Likewise.
* gnu/services/networking.scm (openntpd-shepherd-service): Likewise.
(tor-shepherd-service): Likewise.
* gnu/services/ssh.scm (openssh-shepherd-service): Likewise.
* gnu/services/web.scm (nginx-shepherd-service): Likewise.
* gnu/services/xorg.scm (gdm-shepherd-service): Likewise.
* gnu/tests/base.scm (run-basic-test)["nscd configuration action"]: New
test.
* doc/guix.texi (Services): Document it.

* gnu/services/authentication.scm (fprintd-configuration)
(nslcd-configuration): Substitute file-like objects for package ones.
* gnu/services/cgit.scm (cgit-configuration, opaque-cgit-configuration):
Likewise.
* gnu/services/cups.scm (package-list?, cups-configuration): Likewise.
* gnu/services/dns.scm (verify-knot-configuration)
(ddclient-configuration): Likewise.
* gnu/services/docker.scm (docker-configuration): Likewise.
* gnu/services/file-sharing.scm (transmission-daemon-configuration): Likewise.
* gnu/services/getmail.scm (getmail-configuration): Likewise.
* gnu/services/mail.scm (dovecot-configuration)
(opaque-dovecot-configuration): Likewise.
* gnu/services/messaging.scm (prosody-configuration)
(opaque-prosody-configuration): Likewise.
* gnu/services/monitoring.scm (zabbix-server-configuration)
(zabbix-agent-configuration): Likewise.
* gnu/services/networking.scm (opendht-configuration): Likewise.
* gnu/services/pm.scm (tlp-configuration): Likewise.
* gnu/services/telephony.scm (jami-configuration): Likewise.
* gnu/services/virtualization.scm (libvirt-configuration)
(qemu-guest-agent-configuration): Likewise.
* gnu/services/vpn.scm (openvpn-client-configuration): Likewise.

These service procedures were deprecated in January 2019, for instance
in commit 65a67bf711b14bc7200f6730c0f173375ca12974.

* gnu/services/avahi.scm (avahi-service): Remove.
* gnu/services/base.scm (console-keymap, guix-service)
(guix-publish-service, gpm-service, urandom-seed-service): Remove.
* gnu/services/desktop.scm (upower-service, colord-service): Remove.
* gnu/services/mcron.scm (mcron-service): Remove.
* gnu/services/messaging.scm (bitlbee-service): Remove.
* gnu/services/networking.scm (dhcp-client-service, ntp-service)
(tor-service): Remove.
* gnu/services/xorg.scm (slim-service, gdm-service): Remove.

* gnu/services/avahi.scm (avahi-shepherd-service): Add 'user-processes'
to 'requirement'.

* gnu/packages/avahi.scm (avahi)[home-page]: Use HTTPS.
* gnu/services/avahi.scm (avahi-service): Likewise in docstring.

* gnu/services/avahi.scm (<avahi-configuration>): Export getters.  Add
default values.
(avahi-service-type)[default-value]: New field.
(avahi-service): Mark as deprecated.
* gnu/services/desktop.scm (%desktop-services): Use the 'service' form
instead of calling 'avahi-service'.
* gnu/tests/base.scm (%avahi-os): Likewise.
* doc/guix.texi (Base Services): Adjust example accordingly.
(Networking Services): Update accordingly.

This reverts to the behavior of avahi-daemon prior to Avahi 0.7 (commit
550f4509acf2c0f67882260414b0bb2843e07465).

* gnu/services/avahi.scm (<avahi-configuration>)[publish-workstation?]:
New field.
(configuration-file): Honor it.

* gnu/services/avahi.scm (%avahi-activation, avahi-shepherd-service):
Use /run/avahi-daemon/ instead of /var/run/avahi-daemon/.  This was the
case since the switch to Avahi 0.7 (commit
550f4509acf2c0f67882260414b0bb2843e07465).