/usr/lib/ is in debian-edu-config 1.818+deb8u2.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/debian-edu-config/
/usr/lib/debian-edu-config/testsuite/
/usr/lib/debian-edu-config/testsuite/webcache
/usr/lib/debian-edu-config/testsuite/samba
/usr/lib/debian-edu-config/testsuite/locale
/usr/lib/debian-edu-config/testsuite/webserver
/usr/lib/debian-edu-config/testsuite/nfs-server
/usr/lib/debian-edu-config/testsuite/hardware
/usr/lib/debian-edu-config/testsuite/ldap-server
/usr/lib/debian-edu-config/testsuite/timezone
/usr/lib/debian-edu-config/testsuite/syslog
/usr/lib/debian-edu-config/testsuite/php
/usr/lib/debian-edu-config/testsuite/procs
/usr/lib/debian-edu-config/testsuite/network
/usr/lib/debian-edu-config/testsuite/kdm
/usr/lib/debian-edu-config/testsuite/filesystems
/usr/lib/debian-edu-config/testsuite/ntp
/usr/lib/debian-edu-config/testsuite/nagios
/usr/lib/debian-edu-config/testsuite/kerberos
/usr/lib/debian-edu-config/testsuite/ltsp
/usr/lib/debian-edu-config/testsuite/automount
/usr/lib/debian-edu-config/testsuite/cups
/usr/lib/debian-edu-config/testsuite/dash
/usr/lib/debian-edu-config/testsuite/xfree86
/usr/lib/debian-edu-config/testsuite/keyboard-console
/usr/lib/debian-edu-config/testsuite/partitioning
/usr/lib/debian-edu-config/testsuite/taskpkgs
/usr/lib/debian-edu-config/testsuite/backup
/usr/lib/debian-edu-config/testsuite/postoffice
/usr/lib/debian-edu-config/testsuite/sudo
/usr/lib/debian-edu-config/testsuite/workstation
/usr/lib/debian-edu-config/testsuite/etckeeper
/usr/lib/debian-edu-config/testsuite/pxeinstall
/usr/lib/debian-edu-config/testsuite/dhcpd
/usr/lib/debian-edu-config/testsuite/dnsd
/usr/lib/debian-edu-config/testsuite/ldap-client
/usr/lib/debian-edu-config/testsuite/rdp-server
/usr/lib/debian-edu-config/testsuite/doc
/usr/lib/mime/
/usr/lib/mime/packages/
/usr/lib/mime/packages/debian-edu-mailcap