Fix recent change to window-max-chars-per-line

* lisp/window.el (window-max-chars-per-line):
line-number-display-width can return a floating point number, but
we want an integer (bug#43548).

diff --git a/lisp/window.el b/lisp/window.el
index 72957d846aed281660c8e2da3633017268da2a5a..9aca94d502a8568014ac182f9810376aaf0e0438 100644 (file)
--- a/lisp/window.el
+++ b/lisp/window.el
@@ -2173,7 +2173,7 @@ the font."
     (let* ((window-width (window-body-width window t))
           (font-width (window-font-width window face))
           (ncols (- (/ window-width font-width)
-                     (line-number-display-width 'columns))))
+                     (ceiling (line-number-display-width 'columns)))))
       (if (and (display-graphic-p)
               overflow-newline-into-fringe
                (not