The systemd package shipped a few systemd-journal-remote and
systemd-journal-upload related man pages which really belong into the
systemd-journal-remote package. Move those man pages into the correct
package and add a Breaks/Replaces against systemd accordingly.
Closes: #903557
Add a helper script debian/extra/make-sysusers-basic which generates a
sysusers.d(5) file from Debian's static master passwd/group files.
systemd 238 now supports specifying different uid and gid and a
non-default login shell, so this is possible now.
Closes: #888126
https://github.com/systemd/systemd/pull/6467 drops
tmpfiles.d/systemd-remote.conf, so it will be gone from 235 on and for upstream
CI. Move this file from dh_install to manual installation when present.
