SCRUM#466: Allow guests to shutdown only when no one else is logged in

3 jobs for issue/466 in 26 seconds (queued for 7 seconds)
Status Job ID Name Coverage
  Lint
failed #31574
debian-packaging
lint_shell

00:00:26

 
  Build
skipped #31575
debian-packaging
build
 
  Test
skipped #31576
ubuntu debootstrap
test
 
Name Stage Failure
failed
lint_shell Lint
$ shellcheck() { "shellcheck-$scversion/shellcheck" "$@"; }
$ ./.linter_shell.sh

In package/usr/sbin/cleanup-sessions line 32:
while read SESSION
^-- SC2162: read without -r will mangle backslashes.

Understand errors in:
https://github.com/koalaman/shellcheck/wiki
ERROR: Job failed: exit code 1