Variable: find-function-mode-hook
find-function-mode-hook is a customizable variable defined in
find-func.el.gz.
Value
nil
Documentation
Hook run after entering or leaving find-function-mode(var)/find-function-mode(fun).
No problems result if this variable is not bound.
add-hook automatically binds it. (This is true for all hook variables.)
Source Code
;; Defined in /usr/src/emacs/lisp/emacs-lisp/find-func.el.gz