/usr/ is in elpa-meson-mode 0.1-1.
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/compat/
/usr/lib/emacsen-common/packages/compat/elpa-meson-mode
/usr/lib/emacsen-common/packages/install/
/usr/lib/emacsen-common/packages/install/elpa-meson-mode
/usr/lib/emacsen-common/packages/remove/
/usr/lib/emacsen-common/packages/remove/elpa-meson-mode
/usr/share/
/usr/share/doc/
/usr/share/doc/elpa-meson-mode/
/usr/share/doc/elpa-meson-mode/README.md
/usr/share/doc/elpa-meson-mode/changelog.Debian.gz
/usr/share/doc/elpa-meson-mode/copyright
/usr/share/emacs/
/usr/share/emacs/site-lisp/
/usr/share/emacs/site-lisp/elpa-src/
/usr/share/emacs/site-lisp/elpa-src/meson-mode-0.1/
/usr/share/emacs/site-lisp/elpa-src/meson-mode-0.1/meson-mode-autoloads.el
/usr/share/emacs/site-lisp/elpa-src/meson-mode-0.1/meson-mode-pkg.el
/usr/share/emacs/site-lisp/elpa-src/meson-mode-0.1/meson-mode.el