(history-delete-duplicates): Specify customization.

diff --git a/lisp/cus-start.el b/lisp/cus-start.el
index c9ce8f8474c953431895e0a156f1a1a68acd3035..e764a70c9a257b62346b09439610820c7e947c87 100644 (file)
--- a/lisp/cus-start.el
+++ b/lisp/cus-start.el
@@ -168,6 +168,7 @@
             (history-length minibuffer
                             (choice (const :tag "Infinite" t)
                                     integer))
+            (history-delete-duplicates minibuffer boolean)
             (minibuffer-prompt-properties
              minibuffer
              (list