/usr/share/ is in notmuch-emacs 0.17-3.
This file is owned by root:root, with mode 0o755.
..
/usr/share/emacs/
/usr/share/emacs/site-lisp/
/usr/share/emacs/site-lisp/notmuch/
/usr/share/emacs/site-lisp/notmuch/coolj.el
/usr/share/emacs/site-lisp/notmuch/notmuch-tag.el
/usr/share/emacs/site-lisp/notmuch/notmuch-maildir-fcc.el
/usr/share/emacs/site-lisp/notmuch/notmuch-address.el
/usr/share/emacs/site-lisp/notmuch/notmuch.el
/usr/share/emacs/site-lisp/notmuch/notmuch-tree.el
/usr/share/emacs/site-lisp/notmuch/notmuch-crypto.el
/usr/share/emacs/site-lisp/notmuch/notmuch-message.el
/usr/share/emacs/site-lisp/notmuch/notmuch-show.el
/usr/share/emacs/site-lisp/notmuch/notmuch-print.el
/usr/share/emacs/site-lisp/notmuch/notmuch-lib.el
/usr/share/emacs/site-lisp/notmuch/notmuch-mua.el
/usr/share/emacs/site-lisp/notmuch/notmuch-wash.el
/usr/share/emacs/site-lisp/notmuch/notmuch-query.el
/usr/share/emacs/site-lisp/notmuch/notmuch-parser.el
/usr/share/emacs/site-lisp/notmuch/notmuch-hello.el
/usr/share/doc/
/usr/share/doc/notmuch-emacs/
/usr/share/doc/notmuch-emacs/copyright
/usr/share/doc/notmuch-emacs/README.Debian
/usr/share/doc/notmuch-emacs/NEWS.Debian.gz
/usr/share/doc/notmuch-emacs/changelog.Debian.gz