/usr/ is in php-http-request2 2.1.1-5.
This file is owned by root:root, with mode 0o755.
..
/usr/share/
/usr/share/doc/
/usr/share/doc/php-http-request2/
/usr/share/doc/php-http-request2/changelog.Debian.gz
/usr/share/doc/php-http-request2/examples/
/usr/share/doc/php-http-request2/examples/upload-rapidshare.php
/usr/share/doc/php-http-request2/copyright
/usr/share/doc/php-http-request2/package.xml.gz
/usr/share/php/
/usr/share/php/HTTP/
/usr/share/php/HTTP/Request2.php
/usr/share/php/HTTP/Request2/
/usr/share/php/HTTP/Request2/Exception.php
/usr/share/php/HTTP/Request2/CookieJar.php
/usr/share/php/HTTP/Request2/SocketWrapper.php
/usr/share/php/HTTP/Request2/Observer/
/usr/share/php/HTTP/Request2/Observer/Log.php
/usr/share/php/HTTP/Request2/MultipartBody.php
/usr/share/php/HTTP/Request2/Response.php
/usr/share/php/HTTP/Request2/SOCKS5.php
/usr/share/php/HTTP/Request2/Adapter.php
/usr/share/php/HTTP/Request2/Adapter/
/usr/share/php/HTTP/Request2/Adapter/Socket.php
/usr/share/php/HTTP/Request2/Adapter/Mock.php
/usr/share/php/HTTP/Request2/Adapter/Curl.php
/usr/share/php/.registry/
/usr/share/php/.registry/http_request2.reg
/usr/share/php/data/
/usr/share/php/data/HTTP_Request2/
/usr/share/php/data/HTTP_Request2/public-suffix-list.php
/usr/share/php/data/HTTP_Request2/generate-list.php