Problem: The first line of `ol-notmuch.el` shows the filename as: `org-notmuch.el` https://code.orgmode.org/bzg/org-mode/src/3a6061e787efc9793ce1b7445a1f2502f679b40e/contrib/lisp/ol-notmuch.el#L1
Cause: It was overlooked when the other instances in the same file, were renamed in this commit: https://code.orgmode.org/bzg/org-mode/commit/499c0a50cc4b11e37b91374af23cb27ab8fc20d2#diff-6c345091b7fe5d259065a88d401cb738915e6f4R1 Solution: Before: ;;; org-notmuch.el --- Links to notmuch messages After: ;;; ol-notmuch.el --- Links to notmuch messages