/usr/ is in php-auth-http 2.1.6-4.
This file is owned by root:root, with mode 0o755.
..
/usr/share/php/Auth/
/usr/share/
/usr/share/php/
/usr/share/php/.registry/
/usr/share/doc/php-auth-http/changelog.Debian.gz
/usr/share/php/.registry/auth_http.reg
/usr/share/php/Auth/HTTP.php
/usr/share/php/test/
/usr/share/php/test/Auth_HTTP/
/usr/share/php/test/Auth_HTTP/tests/
/usr/share/php/test/Auth_HTTP/tests/test_digest_simple.php
/usr/share/php/test/Auth_HTTP/tests/test_digest_get.php
/usr/share/php/test/Auth_HTTP/tests/test_digest_post.php
/usr/share/php/test/Auth_HTTP/tests/sample.sql
/usr/share/php/test/Auth_HTTP/tests/test_basic_simple.php
/usr/share/doc/
/usr/share/doc/php-auth-http/
/usr/share/doc/php-auth-http/tests/
/usr/share/doc/php-auth-http/tests/sample.sql
/usr/share/doc/php-auth-http/tests/test_basic_simple.php
/usr/share/doc/php-auth-http/tests/test_digest_get.php
/usr/share/doc/php-auth-http/tests/test_digest_post.php
/usr/share/doc/php-auth-http/tests/test_digest_simple.php
/usr/share/doc/php-auth-http/copyright