/usr/share/help-langpack/el/file-roller/ is in language-pack-gnome-el-base 1:14.04+20140410.
This file is owned by root:root, with mode 0o755.
..
/usr/share/help-langpack/el/file-roller/archive-create.page
/usr/share/help-langpack/el/file-roller/archive-edit.page
/usr/share/help-langpack/el/file-roller/archive-extract-advanced-options.page
/usr/share/help-langpack/el/file-roller/archive-extract.page
/usr/share/help-langpack/el/file-roller/archive-open.page
/usr/share/help-langpack/el/file-roller/archive-view.page
/usr/share/help-langpack/el/file-roller/index.page
/usr/share/help-langpack/el/file-roller/introduction.page
/usr/share/help-langpack/el/file-roller/keyboard-shortcuts.page
/usr/share/help-langpack/el/file-roller/password-protection.page
/usr/share/help-langpack/el/file-roller/supported-formats.page
/usr/share/help-langpack/el/file-roller/test-integrity.page
/usr/share/help-langpack/el/file-roller/troubleshooting-archive-open.page
/usr/share/help-langpack/el/file-roller/troubleshooting-password.page