/usr/share/help-langpack/my/ is in language-pack-gnome-my-base 1:18.04+20180423.
This file is owned by root:root, with mode 0o755.
..
/usr/share/help-langpack/my/org.gnome.DejaDup/
/usr/share/help-langpack/my/org.gnome.DejaDup/backup-auto.page
/usr/share/help-langpack/my/org.gnome.DejaDup/backup-first.page
/usr/share/help-langpack/my/org.gnome.DejaDup/contribute.page
/usr/share/help-langpack/my/org.gnome.DejaDup/credits.page
/usr/share/help-langpack/my/org.gnome.DejaDup/index.page
/usr/share/help-langpack/my/org.gnome.DejaDup/license.page
/usr/share/help-langpack/my/org.gnome.DejaDup/prefs.page
/usr/share/help-langpack/my/org.gnome.DejaDup/restore-full.page
/usr/share/help-langpack/my/org.gnome.DejaDup/restore-lost.page
/usr/share/help-langpack/my/org.gnome.DejaDup/restore-revert.page
/usr/share/help-langpack/my/org.gnome.DejaDup/restore-worst-case.page
/usr/share/help-langpack/my/org.gnome.DejaDup/support.page