Variable: mode-line-position-line-format
mode-line-position-line-format is a customizable variable defined in
bindings.el.gz.
Value
(" L%l")
Documentation
Format used to display line numbers in the mode line.
This is used when line-number-mode(var)/line-number-mode(fun) is switched on. The "%l"
format spec will be replaced by the line number.
Also see mode-line-position-column-line-format.
This variable was added, or its default value changed, in Emacs 28.1.
Probably introduced at or before Emacs version 28.1.
Source Code
;; Defined in /usr/src/emacs/lisp/bindings.el.gz
(defcustom mode-line-position-line-format '(" L%l")
"Format used to display line numbers in the mode line.
This is used when `line-number-mode' is switched on. The \"%l\"
format spec will be replaced by the line number.
Also see `mode-line-position-column-line-format'."
:type '(list string)
:version "28.1"
:group 'mode-line)