/usr/ is in php-html-safe 0.10.1-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/php/.registry/
/usr/share/
/usr/share/php/
/usr/share/php/.registry/html_safe.reg
/usr/share/php/docs/
/usr/share/php/HTML/
/usr/share/php/HTML/Safe.php
/usr/share/php/tests/
/usr/share/php/tests/HTML_Safe/
/usr/share/doc/
/usr/share/doc/php-html-safe/
/usr/share/doc/php-html-safe/package.xml
/usr/share/doc/php-html-safe/docs/
/usr/share/doc/php-html-safe/docs/README
/usr/share/doc/php-html-safe/tests/
/usr/share/doc/php-html-safe/tests/testHTML_Safe.php
/usr/share/doc/php-html-safe/copyright
/usr/share/doc/php-html-safe/changelog.Debian.gz
/usr/share/php/docs/HTML_Safe
/usr/share/php/tests/HTML_Safe/tests