GitLab

(Man-columns): New buffer-local variable.
(Man-columns): New function.
(Man-start-calling): Call Man-columns and set buffer-local Man-columns.
(Man--window-state-change-timer): New internal variable.
(Man--window-state-change): New internal function.
(Man-fit-to-window): New function.
(Man-mode): Add Man--window-state-change to local hook
window-state-change-functions.

* lisp/image-mode.el (image-fit-to-window): Add window arg to
window-buffer call.