/usr/ is in emacs-window-layout 1.1-2.
This file is owned by root:root, with mode 0o755.
..
/usr/share/
/usr/share/emacs/
/usr/share/emacs/site-lisp/
/usr/share/emacs/site-lisp/emacs-window-layout/
/usr/share/emacs/site-lisp/emacs-window-layout/window-layout.el
/usr/share/doc/
/usr/share/doc/emacs-window-layout/
/usr/share/doc/emacs-window-layout/copyright
/usr/share/doc/emacs-window-layout/changelog.Debian.gz
/usr/lib/
/usr/lib/emacsen-common/
/usr/lib/emacsen-common/packages/
/usr/lib/emacsen-common/packages/install/
/usr/lib/emacsen-common/packages/install/emacs-window-layout
/usr/lib/emacsen-common/packages/remove/
/usr/lib/emacsen-common/packages/remove/emacs-window-layout