/usr/ is in libdspam7-drv-pgsql 3.10.1+dfsg-4ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/
/usr/share/doc/
/usr/share/doc/libdspam7-drv-pgsql/
/usr/share/doc/libdspam7-drv-pgsql/pgsql_drv.txt.gz
/usr/share/doc/libdspam7-drv-pgsql/copyright
/usr/share/doc/libdspam7-drv-pgsql/sql/
/usr/share/doc/libdspam7-drv-pgsql/sql/virtual_users.sql
/usr/share/doc/libdspam7-drv-pgsql/sql/pgsql_objects.sql
/usr/share/doc/libdspam7-drv-pgsql/sql/purge-pe.sql
/usr/share/dbconfig-common/
/usr/share/dbconfig-common/data/
/usr/share/dbconfig-common/data/libdspam7-drv-pgsql/
/usr/share/dbconfig-common/data/libdspam7-drv-pgsql/install/
/usr/share/dbconfig-common/data/libdspam7-drv-pgsql/install/pgsql
/usr/share/dbconfig-common/data/libdspam7-drv-pgsql/install-dbadmin/
/usr/share/dbconfig-common/data/libdspam7-drv-pgsql/install-dbadmin/pgsql
/usr/share/dbconfig-common/data/libdspam7-drv-pgsql/upgrade/
/usr/share/dbconfig-common/data/libdspam7-drv-pgsql/upgrade/pgsql/
/usr/share/dbconfig-common/data/libdspam7-drv-pgsql/upgrade/pgsql/3.9
/usr/share/dbconfig-common/data/libdspam7-drv-pgsql/upgrade/pgsql/3.8
/usr/lib/
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/dspam/
/usr/lib/x86_64-linux-gnu/dspam/libpgsql_drv.so.7.0.0
/usr/share/doc/libdspam7-drv-pgsql/changelog.Debian.gz
/usr/lib/x86_64-linux-gnu/dspam/libpgsql_drv.so.7
/usr/lib/x86_64-linux-gnu/dspam/libpgsql_drv.so