Bug#972609: /lib/runit-helper/runit-helper: 74: sv: not found

Package: openssh-server
Version: 1:8.4p1-1
Severity: minor

Hi,

reconfiguring openssh-server gives the following output:

[5/5060]mh@fan:~ $ sudo dpkg-reconfigure -plow openssh-server
rescue-ssh.target is a disabled or a static unit, not starting it.
/lib/runit-helper/runit-helper: 74: sv: not found
[6/5061]mh@fan:~ $

I am not sure wheter this is an issue in runit, or in openssh. A message
like this is one that a trained administrator's eye will immediately
lock on to, so it should not be there.

Greetings
Marc

-- System Information:
Debian Release: bullseye/sid
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)

Kernel: Linux 5.9.1-zgws1 (SMP w/12 CPU threads)
Locale: LANG=de_DE.utf8, LC_CTYPE=de_DE.utf8 (charmap=UTF-8), LANGUAGE=en
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages openssh-server depends on:
ii  adduser                3.118
ii  debconf [debconf-2.0]  1.5.74
ii  dpkg                   1.20.5
ii  libaudit1              1:2.8.5-3.1
ii  libc6                  2.31-4
ii  libcom-err2            1.45.6-1
ii  libcrypt1              1:4.4.17-1
ii  libgssapi-krb5-2       1.17-10
ii  libkrb5-3              1.17-10
ii  libpam-modules         1.3.1-5
ii  libpam-runtime         1.3.1-5
ii  libpam0g               1.3.1-5
ii  libselinux1            3.1-2+b1
ii  libssl1.1              1.1.1h-1
ii  libsystemd0            246.6-2
ii  libwrap0               7.6.q-30
ii  lsb-base               11.1.0
ii  openssh-client         1:8.4p1-1
ii  openssh-sftp-server    1:8.4p1-1
ii  procps                 2:3.3.16-5
ii  runit-helper           2.9.0
ii  ucf                    3.0043
ii  zlib1g                 1:1.2.11.dfsg-2

Versions of packages openssh-server recommends:
ii  libpam-systemd [logind]  246.6-2
ii  ncurses-term             6.2+20200918-1
ii  xauth                    1:1.0.10-1

Versions of packages openssh-server suggests:
ii  ksshaskpass [ssh-askpass]           4:5.19.4-1
ii  lxqt-openssh-askpass [ssh-askpass]  0.14.1-1
ii  molly-guard                         0.7.2
pn  monkeysphere                        <none>
pn  ufw                                 <none>

-- debconf information:
  openssh-server/permit-root-login: true
  ssh/encrypted_host_key_but_no_keygen:
  openssh-server/password-authentication: true
* ssh/use_old_init_script: true
  ssh/vulnerable_host_keys:
  ssh/disable_cr_auth: false