Variable: Man-width
Man-width is a customizable variable defined in man.el.gz.
Value
nil
Documentation
Number of columns for which manual pages should be formatted.
If nil, use the width of the window where the manpage is displayed. If non-nil, use the width of the frame where the manpage is displayed. The value also can be a positive integer for a fixed width.
Source Code
;; Defined in /usr/src/emacs/lisp/man.el.gz
(defcustom Man-width nil
"Number of columns for which manual pages should be formatted.
If nil, use the width of the window where the manpage is displayed.
If non-nil, use the width of the frame where the manpage is displayed.
The value also can be a positive integer for a fixed width."
:type '(choice (const :tag "Window width" nil)
(const :tag "Frame width" t)
(integer :tag "Fixed width" :value 65)))