Update doc-string of display-buffer-alist.

diff --git a/lisp/window.el b/lisp/window.el
index 2c38212de58ede0a47bbad520e2c4bac7d008e58..a4baf99d956ac5a04e3e5f1ed7683a402aaf9d2c 100644 (file)
--- a/lisp/window.el
+++ b/lisp/window.el
@@ -3792,6 +3792,14 @@ supported:
 
 - t to strongly dedicate the window to the buffer.
 
+A cons cell whose car is `other-window-means-other-frame' and
+whose cdr is non-nil means that you want calls of
+`display-buffer' with the second argument t or the symbol
+`other-window' to display the buffer in another frame.  This
+means, for example, that you prefer functions like
+`find-file-other-window' or `switch-to-buffer-other-window' to
+make a new frame instead of a new window on the selected frame.
+
 Usually, applications are free to override the specifiers of
 `display-buffer-alist' by passing their own specifiers as second
 argument of `display-buffer'.  For every `display-buffer-alist'