Also ensure prompt_yes_no always print the message with a trailing space,
which is more pleasing to the eye.
* etc/guix-daemon.conf.in <--discover=no>: New guix-daemon option.
* etc/guix-daemon.service.in: Likewise.
* etc/init.d/guix-daemon.in: Likewise.
* etc/openrc/guix-daemon.in: Likewise.
* etc/guix-install.sh (configure_substitute_discovery): New procedure.
(sys_enable_guix_daemon): Ask the user whether automatic substitute discovery
should be enabled. Set the '--discover' argument accordingly.
(prompt_yes_no): Add a trailing space to the message.
(sys_authorize_build_farms): Remove trailing space from the message argument.
* NEWS (Distribution): Add news.
* .dir-locals.el (scheme-mode)[gexp->derivation]: Define indentation rule.
* guix/scripts/pack.scm (debian-archive): New procedure.
(%formats): Register the new deb format.
(show-formats): Add it to the usage string.
* tests/pack.scm (%ar-bootstrap): New variable.
(deb archive with symlinks): New test.
* doc/guix.texi (Invoking guix pack): Document it.
* NEWS: Add news entry.
* guix/packages.scm (package-full-name): By default, use "@" to separate
the package name and package version. Add an optional delimiter
argument so that there is still a way to explicitly use a different
delimiter.
* gnu/packages/commencement.scm (gcc-boot0) <unpack-gmp&co>: Adjust
accordingly.
* tests/graph.scm: Adjust accordingly.
* tests/profiles.scm: Adjust accordingly.
* NEWS: Mention the change.
Fixes: <https://bugs.gnu.org/31088>.
Reported by Pierre Neidhardt <ambrevar@gmail.com>.
