/usr/ is in php-auth 1.6.2-1ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/php/
/usr/share/php/.registry/
/usr/share/
/usr/share/php/.registry/.channel.doc.php.net/
/usr/share/php/.registry/auth.reg
/usr/share/php/Auth/
/usr/share/php/Auth/Auth.php
/usr/share/php/Auth/Controller.php
/usr/share/php/Auth/Container.php
/usr/share/php/Auth/Container/
/usr/share/php/Auth/Container/DB.php
/usr/share/php/Auth/Container/DBLite.php
/usr/share/php/Auth/Container/File.php
/usr/share/php/Auth/Container/IMAP.php
/usr/share/php/Auth/Container/KADM5.php
/usr/share/php/Auth/Container/LDAP.php
/usr/share/php/Auth/Container/MDB.php
/usr/share/php/Auth/Container/MDB2.php
/usr/share/php/Auth/Container/Multiple.php
/usr/share/php/Auth/Container/PEAR.php
/usr/share/php/Auth/Container/POP3.php
/usr/share/php/Auth/Container/RADIUS.php
/usr/share/php/Auth/Container/SAP.php
/usr/share/php/Auth/Container/SMBPasswd.php
/usr/share/php/Auth/Container/SOAP.php
/usr/share/php/Auth/Container/SOAP5.php
/usr/share/php/Auth/Container/vpopmail.php
/usr/share/php/Auth/Container/NetVPOPMaild.php
/usr/share/php/Auth/Container/Array.php
/usr/share/php/Auth/Frontend/
/usr/share/php/Auth/Frontend/md5.js
/usr/share/php/Auth/Frontend/Html.php
/usr/share/php/Auth/Anonymous.php
/usr/share/php/Auth.php
/usr/share/doc/
/usr/share/doc/php-auth/
/usr/share/doc/php-auth/README.AdvancedSecurity
/usr/share/doc/php-auth/README.Auth
/usr/share/doc/php-auth/copyright
/usr/share/doc/php-auth/examples/
/usr/share/doc/php-auth/examples/tests/
/usr/share/doc/php-auth/examples/tests/auth_container_db_options.php
/usr/share/doc/php-auth/examples/tests/auth_container_file_options.php
/usr/share/doc/php-auth/examples/tests/auth_container_mdb2_options.php
/usr/share/doc/php-auth/examples/tests/auth_container_mdb_options.php
/usr/share/doc/php-auth/examples/tests/auth_container_pop3a_options.php
/usr/share/doc/php-auth/examples/tests/auth_container_pop3_options.php
/usr/share/doc/php-auth/examples/tests/DBContainer.php
/usr/share/doc/php-auth/examples/tests/FileContainer.php
/usr/share/doc/php-auth/examples/tests/MDB2Container.php
/usr/share/doc/php-auth/examples/tests/MDBContainer.php
/usr/share/doc/php-auth/examples/tests/mysql_test_db.sql
/usr/share/doc/php-auth/examples/tests/POP3aContainer.php
/usr/share/doc/php-auth/examples/tests/POP3Container.php
/usr/share/doc/php-auth/examples/tests/tests.php
/usr/share/doc/php-auth/examples/tests/users
/usr/share/doc/php-auth/examples/tests/bug8735.passwd
/usr/share/doc/php-auth/examples/tests/bug8735.phpt
/usr/share/doc/php-auth/examples/tests/TestAuthContainer.php.gz
/usr/share/doc/php-auth/examples/logging.php
/usr/share/doc/php-auth/examples/multi-container.php
/usr/share/doc/php-auth/package.xml.gz
/usr/share/doc/php-auth/changelog.Debian.gz