Variable: grep-find-abbreviate
grep-find-abbreviate is a customizable variable defined in grep.el.gz.
Value
t
Documentation
If non-nil, hide part of rgrep/lgrep/zrgrep command line.
The hidden part contains a list of ignored directories and files.
Clicking on the button-like ellipsis unhides the abbreviated part
and reveals the entire command line. The visibility of the
abbreviated part can also be toggled with
grep-find-toggle-abbreviation.
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/progmodes/grep.el.gz
(defcustom grep-find-abbreviate t
"If non-nil, hide part of rgrep/lgrep/zrgrep command line.
The hidden part contains a list of ignored directories and files.
Clicking on the button-like ellipsis unhides the abbreviated part
and reveals the entire command line. The visibility of the
abbreviated part can also be toggled with
`grep-find-toggle-abbreviation'."
:type 'boolean
:version "27.1")