/usr/ is in urweb-mode 20160213+dfsg-1build1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/
/usr/lib/emacsen-common/
/usr/lib/emacsen-common/packages/
/usr/lib/emacsen-common/packages/remove/
/usr/lib/emacsen-common/packages/remove/urweb-mode
/usr/lib/emacsen-common/packages/compat/
/usr/lib/emacsen-common/packages/compat/urweb-mode
/usr/lib/emacsen-common/packages/install/
/usr/lib/emacsen-common/packages/install/urweb-mode
/usr/share/
/usr/share/emacs/
/usr/share/emacs/site-lisp/
/usr/share/emacs/site-lisp/urweb-mode/
/usr/share/emacs/site-lisp/urweb-mode/urweb-defs.el
/usr/share/emacs/site-lisp/urweb-mode/urweb-compat.el
/usr/share/emacs/site-lisp/urweb-mode/urweb-util.el
/usr/share/emacs/site-lisp/urweb-mode/urweb-mode-startup.el
/usr/share/emacs/site-lisp/urweb-mode/urweb-mode.el
/usr/share/emacs/site-lisp/urweb-mode/urweb-move.el
/usr/share/doc/
/usr/share/doc/urweb-mode/
/usr/share/doc/urweb-mode/copyright
/usr/share/doc/urweb-mode/changelog.Debian.gz