Variable: hs-display-lines-hidden
hs-display-lines-hidden is a customizable variable defined in
hideshow.el.gz.
Value
nil
Documentation
If non-nil, display the number of hidden lines next to the ellipsis.
This variable was added, or its default value changed, in Emacs 31.1.
Probably introduced at or before Emacs version 31.1.
Source Code
;; Defined in /usr/src/emacs/lisp/progmodes/hideshow.el.gz
(defcustom hs-display-lines-hidden nil
"If non-nil, display the number of hidden lines next to the ellipsis."
:type 'boolean
:version "31.1")