Variable: shr-fill-text
shr-fill-text is a customizable variable defined in shr.el.gz.
Value
t
Documentation
Non-nil means to fill the text according to the width of the window.
If nil, text is not filled, and visual-line-mode(var)/visual-line-mode(fun) can be used to reflow text.
This variable was added, or its default value changed, in Emacs 30.1.
Probably introduced at or before Emacs version 30.1.
Source Code
;; Defined in /usr/src/emacs/lisp/net/shr.el.gz
(defcustom shr-fill-text t
"Non-nil means to fill the text according to the width of the window.
If nil, text is not filled, and `visual-line-mode' can be used to reflow text."
:version "30.1"
:type 'boolean)