Fix outline-minor-mode-use-buttons defcustom type

* lisp/outline.el (outline-minor-mode-use-buttons): Fix wrong type.

diff --git a/lisp/outline.el b/lisp/outline.el
index 6837722e6447f89b86db6a28e436b20fba3d4377..1aba79784f507180c306c3c5b69e16903ce18e2f 100644 (file)
--- a/lisp/outline.el
+++ b/lisp/outline.el
@@ -288,8 +288,8 @@ The value should be a `buffer-match-p' condition.
 These buttons can be used to hide and show the body under the heading.
 Note that this feature is not meant to be used in editing
 buffers (yet) -- that will be amended in a future version."
-  :type 'boolean
   ;; FIXME -- is there a `buffer-match-p' defcustom type somewhere?
+  :type 'sexp
   :safe #'booleanp
   :version "29.1")