Lintian tag information: init.d-script-does-not-source-init-functions (type: warning)

Description (from lintian-explain-tags)

The /etc/init.d script does not source /lib/lsb/init-functions. The
systemd package provides /lib/lsb/init-functions.d/40-systemd to redirect
/etc/init.d/$script calls to systemctl.

Please add a line like this to your /etc/init.d script:

. /lib/lsb/init-functions

Visibility: warning
Show-Always: no
Check: systemd

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