Variable: whitespace-line-column
whitespace-line-column is a customizable variable defined in
whitespace.el.gz.
Value
80
Documentation
Column beyond which the line is highlighted.
The value must be an integer or nil. If nil, use the value
of the fill-column variable.
The characters beyond the column specified by this variable are
highlighted using the whitespace-line face.
This variable is used when whitespace-style includes lines,
lines-tail or lines-char.
Source Code
;; Defined in /usr/src/emacs/lisp/whitespace.el.gz
(defcustom whitespace-line-column 80
"Column beyond which the line is highlighted.
The value must be an integer or nil. If nil, use the value
of the `fill-column' variable.
The characters beyond the column specified by this variable are
highlighted using the `whitespace-line' face.
This variable is used when `whitespace-style' includes `lines',
`lines-tail' or `lines-char'."
:type '(choice :tag "Line Length Limit"
(integer :tag "Line Length")
(const :tag "Use fill-column" nil))
:safe #'integerp)