Add variable auto-save-no-message

* src/keyboard.c (auto-save-no-message): New variable, allows
suppressing auto-saving message.
* lisp/cus-start.el (standard): Add 'auto-save-no-message' variable.
* doc/emacs/files.texi (Auto Save): Document 'auto-save-no-message'.
* etc/NEWS: Mention 'auto-save-no-message'.  (Bug#31039)

1 files changed, 1 insertions, 0 deletions

diff --git a/lisp/cus-start.el b/lisp/cus-start.el
index f31d1df3097..0d4b9687487 100644
--- a/lisp/cus-start.el
+++ b/lisp/cus-start.el
@@ -345,6 +345,7 @@ Leaving \"Default\" unchecked is equivalent with specifying a default of
              ;; keyboard.c
              (meta-prefix-char keyboard character)
              (auto-save-interval auto-save integer)
+             (auto-save-no-message auto-save boolean)
              (auto-save-timeout auto-save (choice (const :tag "off" nil)
                                                   (integer :format "%v")))
              (echo-keystrokes minibuffer number)