/usr/ is in php-horde-rdo 2.0.5-1ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/
/usr/share/php/
/usr/share/php/Horde/
/usr/share/php/Horde/Rdo/
/usr/share/php/Horde/Rdo/Exception.php
/usr/share/php/Horde/Rdo/Base.php
/usr/share/php/Horde/Rdo/Query/
/usr/share/php/Horde/Rdo/Query/Literal.php
/usr/share/php/Horde/Rdo/Factory.php
/usr/share/php/Horde/Rdo/Mapper.php
/usr/share/php/Horde/Rdo/List.php
/usr/share/php/Horde/Rdo/Query.php
/usr/share/php/Horde/Rdo/Iterator.php
/usr/share/php/Horde/Rdo.php
/usr/share/php/.registry/
/usr/share/php/.registry/.channel.pear.horde.org/
/usr/share/php/.registry/.channel.pear.horde.org/horde_rdo.reg
/usr/share/doc/
/usr/share/doc/php-horde-rdo/
/usr/share/doc/php-horde-rdo/examples/
/usr/share/doc/php-horde-rdo/examples/users.pgsql.sql
/usr/share/doc/php-horde-rdo/examples/Clotho.php
/usr/share/doc/php-horde-rdo/examples/conf.php.dist
/usr/share/doc/php-horde-rdo/examples/User.php
/usr/share/doc/php-horde-rdo/examples/clotho.data.php
/usr/share/doc/php-horde-rdo/examples/Task.php
/usr/share/doc/php-horde-rdo/examples/clotho.mysql.sql
/usr/share/doc/php-horde-rdo/examples/DumpXmlTest.php
/usr/share/doc/php-horde-rdo/examples/CountTest.php
/usr/share/doc/php-horde-rdo/examples/RelationshipTest.php
/usr/share/doc/php-horde-rdo/examples/users.mysql.sql
/usr/share/doc/php-horde-rdo/examples/users.sqlite.sql
/usr/share/doc/php-horde-rdo/copyright
/usr/share/doc/php-horde-rdo/changelog.Debian.gz
/usr/share/doc/php-horde-rdo/TODO.gz
/usr/share/doc/php-horde-rdo/package.xml.gz