/usr/ is in awn-applet-file-browser-launcher 0.4.1~bzr1507-0ubuntu7.
This file is owned by root:root, with mode 0o755.
..
/usr/share/
/usr/share/avant-window-navigator/
/usr/share/avant-window-navigator/schemas/
/usr/share/avant-window-navigator/schemas/awn-applet-file-browser-launcher.schema-ini
/usr/share/avant-window-navigator/applets/
/usr/share/avant-window-navigator/applets/file-browser-launcher.desktop
/usr/share/avant-window-navigator/applets/file-browser-launcher/
/usr/share/avant-window-navigator/applets/file-browser-launcher/prefs.py
/usr/share/avant-window-navigator/applets/file-browser-launcher/file-browser-launcher.py
/usr/share/doc/
/usr/share/doc/awn-applet-file-browser-launcher/
/usr/share/doc/awn-applet-file-browser-launcher/copyright
/usr/share/gconf/
/usr/share/gconf/schemas/
/usr/share/gconf/schemas/awn-applet-file-browser-launcher.schemas
/usr/share/doc/awn-applet-file-browser-launcher/changelog.Debian.gz