+2008-11-28 Glenn Morris <rgm@gnu.org>
+
+ * format.el (format-write-file): Improve previous doc fix.
+
2008-11-27 Chong Yidong <cyd@stupidchicken.com>
* simple.el (use-empty-active-region, use-region-p)
(defun format-write-file (filename format &optional confirm)
"Write current buffer into file FILENAME using some FORMAT.
Make buffer visit that file and set the format as the default for future
-saves. If the buffer is already visiting a file, you can specify a directory
-name as FILENAME, to write a file of the same old name in that directory.
+saves (see below). If the buffer is already visiting a file, you can
+specify a directory name as FILENAME, to write a file of the same old name
+in that directory.
If optional third arg CONFIRM is non-nil, ask for confirmation before
overwriting an existing file. Interactively, confirmation is required
unless you supply a prefix argument.
-The buffer-local value of `buffer-file-format' is set to FORMAT,
-and any original elements (except those with a non-nil `preserve' flag;
-see the documentation of `format-alist') are replaced."
+This function sets the buffer-local value of `buffer-file-format'
+to FORMAT, then appends any elements from the previous value with
+a non-nil `preserve' flag (see the documentation of `format-alist'),
+if they are not already present in the new value."
(interactive
;; Same interactive spec as write-file, plus format question.
(let* ((file (if buffer-file-name