/usr/share/icingaweb2/modules/doc/ is in icingaweb2-module-doc 2.1.0-1ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/icingaweb2/modules/doc/application/
/usr/share/icingaweb2/modules/doc/application/controllers/
/usr/share/icingaweb2/modules/doc/application/controllers/IcingawebController.php
/usr/share/icingaweb2/modules/doc/application/controllers/IndexController.php
/usr/share/icingaweb2/modules/doc/application/controllers/ModuleController.php
/usr/share/icingaweb2/modules/doc/application/controllers/SearchController.php
/usr/share/icingaweb2/modules/doc/application/controllers/StyleController.php
/usr/share/icingaweb2/modules/doc/application/views/
/usr/share/icingaweb2/modules/doc/application/views/scripts/
/usr/share/icingaweb2/modules/doc/application/views/scripts/chapter.phtml
/usr/share/icingaweb2/modules/doc/application/views/scripts/index/
/usr/share/icingaweb2/modules/doc/application/views/scripts/index/index.phtml
/usr/share/icingaweb2/modules/doc/application/views/scripts/module/
/usr/share/icingaweb2/modules/doc/application/views/scripts/module/index.phtml
/usr/share/icingaweb2/modules/doc/application/views/scripts/pdf.phtml
/usr/share/icingaweb2/modules/doc/application/views/scripts/search/
/usr/share/icingaweb2/modules/doc/application/views/scripts/search/index.phtml
/usr/share/icingaweb2/modules/doc/application/views/scripts/style/
/usr/share/icingaweb2/modules/doc/application/views/scripts/style/font.phtml
/usr/share/icingaweb2/modules/doc/application/views/scripts/style/guide.phtml
/usr/share/icingaweb2/modules/doc/application/views/scripts/toc.phtml
/usr/share/icingaweb2/modules/doc/configuration.php
/usr/share/icingaweb2/modules/doc/doc/
/usr/share/icingaweb2/modules/doc/doc/1-module-documentation.md
/usr/share/icingaweb2/modules/doc/library/
/usr/share/icingaweb2/modules/doc/library/Doc/
/usr/share/icingaweb2/modules/doc/library/Doc/DocController.php
/usr/share/icingaweb2/modules/doc/library/Doc/DocIterator.php
/usr/share/icingaweb2/modules/doc/library/Doc/DocParser.php
/usr/share/icingaweb2/modules/doc/library/Doc/DocSection.php
/usr/share/icingaweb2/modules/doc/library/Doc/DocSectionFilterIterator.php
/usr/share/icingaweb2/modules/doc/library/Doc/Exception/
/usr/share/icingaweb2/modules/doc/library/Doc/Exception/ChapterNotFoundException.php
/usr/share/icingaweb2/modules/doc/library/Doc/Exception/DocEmptyException.php
/usr/share/icingaweb2/modules/doc/library/Doc/Exception/DocException.php
/usr/share/icingaweb2/modules/doc/library/Doc/Renderer/
/usr/share/icingaweb2/modules/doc/library/Doc/Renderer/DocRenderer.php
/usr/share/icingaweb2/modules/doc/library/Doc/Renderer/DocSearchRenderer.php
/usr/share/icingaweb2/modules/doc/library/Doc/Renderer/DocSectionRenderer.php
/usr/share/icingaweb2/modules/doc/library/Doc/Renderer/DocTocRenderer.php
/usr/share/icingaweb2/modules/doc/library/Doc/Search/
/usr/share/icingaweb2/modules/doc/library/Doc/Search/DocSearch.php
/usr/share/icingaweb2/modules/doc/library/Doc/Search/DocSearchIterator.php
/usr/share/icingaweb2/modules/doc/library/Doc/Search/DocSearchMatch.php
/usr/share/icingaweb2/modules/doc/module.info
/usr/share/icingaweb2/modules/doc/public/
/usr/share/icingaweb2/modules/doc/public/css/
/usr/share/icingaweb2/modules/doc/public/css/module.less
/usr/share/icingaweb2/modules/doc/public/img/
/usr/share/icingaweb2/modules/doc/public/img/doc/
/usr/share/icingaweb2/modules/doc/public/img/doc/markdown.png
/usr/share/icingaweb2/modules/doc/public/js/
/usr/share/icingaweb2/modules/doc/public/js/module.js
/usr/share/icingaweb2/modules/doc/run.php