Variable: lazy-count-prefix-format
lazy-count-prefix-format is a customizable variable defined in
isearch.el.gz.
Value
"%s/%s "
Documentation
Format of the current/total number of matches for the prompt prefix.
This variable was added, or its default value changed, in Emacs 27.1.
Probably introduced at or before Emacs version 27.1.
Source Code
;; Defined in /usr/src/emacs/lisp/isearch.el.gz
(defcustom lazy-count-prefix-format "%s/%s "
"Format of the current/total number of matches for the prompt prefix."
:type '(choice (const :tag "No prefix" nil)
(string :tag "Prefix format string" "%s/%s "))
:group 'lazy-count
:version "27.1")