Allow nil as a valid value for 'ecomplete-filter-regexp'

* lisp/ecomplete.el (ecomplete-filter-regexp): Replace user option type.

Reported by Mattias Engdegård.

diff --git a/lisp/ecomplete.el b/lisp/ecomplete.el
index 54d60c84d4f00743827590e0ca3b9f28feb7f062..dfee07348176981cd675d9b0ba0fa2552ed72b22 100644 (file)
--- a/lisp/ecomplete.el
+++ b/lisp/ecomplete.el
@@ -88,7 +88,8 @@ string that was matched."
 
 (defcustom ecomplete-filter-regexp nil
   "Regular expression of addresses that should not be stored by ecomplete."
-  :type 'regexp
+  :type '(choice (const :tag "None" nil)
+                 (regexp :tag "Regexp"))
   :version "29.1")
 
 ;;; Internal variables.