/usr/ is in fusionforge-plugin-scmhg 6.0.3+20151023-1ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/
/usr/share/doc/
/usr/share/doc/fusionforge-plugin-scmhg/
/usr/share/doc/fusionforge-plugin-scmhg/copyright
/usr/share/fusionforge/
/usr/share/fusionforge/post-install.d/
/usr/share/fusionforge/cronjobs/
/usr/share/fusionforge/plugins/
/usr/share/fusionforge/plugins/scmhg/
/usr/share/fusionforge/plugins/scmhg/etc/
/usr/share/fusionforge/plugins/scmhg/etc/scmhg.ini
/usr/share/fusionforge/plugins/scmhg/etc/fflog.tmpl
/usr/share/fusionforge/plugins/scmhg/INSTALL
/usr/share/fusionforge/plugins/scmhg/common/
/usr/share/fusionforge/plugins/scmhg/common/scmhg-init.php
/usr/share/fusionforge/plugins/scmhg/common/HgPlugin.class.php
/usr/share/doc/fusionforge-plugin-scmhg/changelog.Debian.gz