/usr/share/bash-completion/ is in ganeti 2.15.2-7+deb9u3.
This file is owned by root:root, with mode 0o755.
..
/usr/share/bash-completion/completions/
/usr/share/bash-completion/completions/ganeti
/usr/share/bash-completion/completions/ganeti-cleaner
/usr/share/bash-completion/completions/ganeti-confd
/usr/share/bash-completion/completions/gnt-backup
/usr/share/bash-completion/completions/gnt-cluster
/usr/share/bash-completion/completions/gnt-debug
/usr/share/bash-completion/completions/gnt-filter
/usr/share/bash-completion/completions/gnt-group
/usr/share/bash-completion/completions/gnt-instance
/usr/share/bash-completion/completions/gnt-job
/usr/share/bash-completion/completions/gnt-network
/usr/share/bash-completion/completions/gnt-node
/usr/share/bash-completion/completions/gnt-os
/usr/share/bash-completion/completions/gnt-storage
/usr/share/bash-completion/completions/hail
/usr/share/bash-completion/completions/harep
/usr/share/bash-completion/completions/hbal
/usr/share/bash-completion/completions/hcheck
/usr/share/bash-completion/completions/hinfo
/usr/share/bash-completion/completions/hroller
/usr/share/bash-completion/completions/hscan
/usr/share/bash-completion/completions/hspace
/usr/share/bash-completion/completions/hsqueeze
/usr/share/bash-completion/completions/mon-collector