/usr/ is in php-horde-feed 2.0.4-1ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/
/usr/share/php/
/usr/share/php/Horde/
/usr/share/php/Horde/Feed/
/usr/share/php/Horde/Feed/Exception.php
/usr/share/php/Horde/Feed/Base.php
/usr/share/php/Horde/Feed/Rss.php
/usr/share/php/Horde/Feed/Atom.php
/usr/share/php/Horde/Feed/Entry/
/usr/share/php/Horde/Feed/Entry/Base.php
/usr/share/php/Horde/Feed/Entry/Rss.php
/usr/share/php/Horde/Feed/Entry/Atom.php
/usr/share/php/Horde/Feed/Entry/Blogroll.php
/usr/share/php/Horde/Feed/Blogroll.php
/usr/share/php/Horde/Feed.php
/usr/share/php/.registry/
/usr/share/php/.registry/.channel.pear.horde.org/
/usr/share/php/.registry/.channel.pear.horde.org/horde_feed.reg
/usr/share/doc/
/usr/share/doc/php-horde-feed/
/usr/share/doc/php-horde-feed/examples/
/usr/share/doc/php-horde-feed/examples/delete.php
/usr/share/doc/php-horde-feed/examples/edit.php
/usr/share/doc/php-horde-feed/examples/reader.php
/usr/share/doc/php-horde-feed/examples/blogger.php
/usr/share/doc/php-horde-feed/examples/read.php
/usr/share/doc/php-horde-feed/examples/post.php
/usr/share/doc/php-horde-feed/examples/blogroll.php
/usr/share/doc/php-horde-feed/copyright
/usr/share/doc/php-horde-feed/changelog.Debian.gz
/usr/share/doc/php-horde-feed/package.xml.gz