/usr/ is in php-invoker 1.1.0-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/doc/php-invoker/
/usr/share/
/usr/share/php/
/usr/share/php/PHP/
/usr/share/php/PHP/Invoker.php
/usr/share/php/PHP/Invoker/
/usr/share/php/PHP/Invoker/Autoload.php
/usr/share/php/PHP/Invoker/TimeoutException.php
/usr/share/php/.registry/
/usr/share/php/.registry/.channel.pear.phpunit.de/
/usr/share/php/.registry/.channel.pear.phpunit.de/php_invoker.reg
/usr/share/doc/
/usr/share/doc/php-invoker/package.xml
/usr/share/doc/php-invoker/copyright
/usr/share/doc/php-invoker/changelog.Debian.gz
/usr/share/doc/php-invoker/PHP_Invoker/
/usr/share/doc/php-invoker/PHP_Invoker/README.markdown