/usr/ is in elpa-git-messenger 0.18-2.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/emacsen-common/packages/install/
/usr/lib/
/usr/lib/emacsen-common/
/usr/lib/emacsen-common/packages/
/usr/lib/emacsen-common/packages/compat/
/usr/lib/emacsen-common/packages/compat/elpa-git-messenger
/usr/lib/emacsen-common/packages/install/elpa-git-messenger
/usr/lib/emacsen-common/packages/remove/
/usr/lib/emacsen-common/packages/remove/elpa-git-messenger
/usr/share/
/usr/share/doc/
/usr/share/doc/elpa-git-messenger/
/usr/share/doc/elpa-git-messenger/README.md
/usr/share/doc/elpa-git-messenger/changelog.Debian.gz
/usr/share/doc/elpa-git-messenger/copyright
/usr/share/emacs/
/usr/share/emacs/site-lisp/
/usr/share/emacs/site-lisp/elpa-src/
/usr/share/emacs/site-lisp/elpa-src/git-messenger-0.18/
/usr/share/emacs/site-lisp/elpa-src/git-messenger-0.18/git-messenger-autoloads.el
/usr/share/emacs/site-lisp/elpa-src/git-messenger-0.18/git-messenger-pkg.el
/usr/share/emacs/site-lisp/elpa-src/git-messenger-0.18/git-messenger.el