+ appear in the search results.
+
+When called interactively, this will prompt for a query and use
+the configured default sort order."
+ (interactive
+ (list
+ ;; Prompt for a query
+ nil
+ ;; Use the default search order (if we're doing a search from a
+ ;; search buffer, ignore any buffer-local overrides)
+ (default-value notmuch-search-oldest-first)))
+