(eshell-ls-exclude-regexp): Fix :type.

diff --git a/lisp/eshell/em-ls.el b/lisp/eshell/em-ls.el
index 534ea932c3caf13a51c6041061c667507f699260..97a342b73acb846091dbd8741877ea3c5e6f88bc 100644 (file)
--- a/lisp/eshell/em-ls.el
+++ b/lisp/eshell/em-ls.el
@@ -85,7 +85,7 @@ This is useful for enabling human-readable format (-h), for example."
 
 (defcustom eshell-ls-exclude-regexp nil
   "*Unless -a is specified, files matching this regexp will not be shown."
-  :type 'regexp
+  :type '(choice regexp (const nil))
   :group 'eshell-ls)
 
 (defcustom eshell-ls-exclude-hidden t