/usr/ is in viewvc-query 1.1.22-1+deb8u1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/
/usr/share/doc/
/usr/lib/
/usr/lib/cgi-bin/
/usr/lib/viewvc/
/usr/lib/viewvc/mod-python/
/usr/lib/viewvc/mod-python/query.py
/usr/lib/viewvc/cgi-bin/
/usr/lib/viewvc/cgi-bin/query.wsgi
/usr/lib/viewvc/cgi-bin/query.fcgi
/usr/lib/viewvc/cgi-bin/query.cgi
/usr/lib/viewvc/bin/
/usr/lib/viewvc/bin/loginfo-handler
/usr/lib/viewvc/bin/cvsdbadmin
/usr/lib/viewvc/bin/svndbadmin
/usr/lib/viewvc/bin/make-database
/usr/sbin/
/usr/share/doc/viewvc-query
/usr/lib/cgi-bin/query.wsgi
/usr/lib/cgi-bin/query.fcgi
/usr/lib/cgi-bin/query.cgi
/usr/sbin/viewvc-svndbadmin
/usr/sbin/viewvc-loginfo-handler
/usr/sbin/viewvc-make-database
/usr/sbin/viewvc-cvsdbadmin