/usr/ is in php-http-webdav-server 1.0.0RC6-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/
/usr/share/php/
/usr/share/php/data/
/usr/share/php/data/HTTP_WebDAV_Server/
/usr/share/php/data/HTTP_WebDAV_Server/EXPERIMENTAL
/usr/share/php/data/HTTP_WebDAV_Server/AUTHORS
/usr/share/php/data/HTTP_WebDAV_Server/TODO
/usr/share/php/HTTP/
/usr/share/php/HTTP/WebDAV/
/usr/share/php/HTTP/WebDAV/Tools/
/usr/share/php/HTTP/WebDAV/Tools/_parse_lockinfo.php
/usr/share/php/HTTP/WebDAV/Tools/_parse_propfind.php
/usr/share/php/HTTP/WebDAV/Tools/_parse_proppatch.php
/usr/share/php/HTTP/WebDAV/file.php
/usr/share/php/HTTP/WebDAV/Server/
/usr/share/php/HTTP/WebDAV/Server/Filesystem.php
/usr/share/php/HTTP/WebDAV/Server.php
/usr/share/php/tests/
/usr/share/php/tests/HTTP_WebDAV_Server/
/usr/share/php/tests/HTTP_WebDAV_Server/tests/
/usr/share/php/tests/HTTP_WebDAV_Server/tests/test.sh
/usr/share/php/tests/HTTP_WebDAV_Server/tests/split_log.php
/usr/share/php/.registry/
/usr/share/php/.registry/http_webdav_server.reg
/usr/share/doc/
/usr/share/doc/php-http-webdav-server/
/usr/share/doc/php-http-webdav-server/HTTP_WebDAV_Server/
/usr/share/doc/php-http-webdav-server/HTTP_WebDAV_Server/README
/usr/share/doc/php-http-webdav-server/HTTP_WebDAV_Server/db/
/usr/share/doc/php-http-webdav-server/HTTP_WebDAV_Server/db/Fileserver.sql
/usr/share/doc/php-http-webdav-server/HTTP_WebDAV_Server/dav.txt.gz
/usr/share/doc/php-http-webdav-server/package.xml.gz
/usr/share/doc/php-http-webdav-server/changelog.gz
/usr/share/doc/php-http-webdav-server/copyright
/usr/share/doc/php-http-webdav-server/changelog.Debian.gz