Use lexical-binding in isearchb.el

* lisp/isearchb.el: Use lexical-binding.  Remove redundant :group
args.

diff --git a/lisp/isearchb.el b/lisp/isearchb.el
index 3713879e3b687d3d6560de0d960d831b75544ebc..67020b76ecbda4c01c9cdec84d8ec0663b4d5b2e 100644 (file)
--- a/lisp/isearchb.el
+++ b/lisp/isearchb.el
@@ -1,4 +1,4 @@
-;;; isearchb --- a marriage between iswitchb and isearch
+;;; isearchb.el --- a marriage between iswitchb and isearch  -*- lexical-binding: t -*-
 
 ;; Copyright (C) 2004-2021 Free Software Foundation, Inc.
 
@@ -89,13 +89,11 @@
   "Number of idle seconds before isearchb turns itself off.
 If nil, don't use a timeout."
   :type '(choice (integer :tag "Seconds")
-                (const :tag "Disable" nil))
-  :group 'isearchb)
+                 (const :tag "Disable" nil)))
 
 (defcustom isearchb-show-completions t
   "If non-nil, show possible completions in the minibuffer."
-  :type 'boolean
-  :group 'isearchb)
+  :type 'boolean)
 
 (defvar isearchb-start-buffer nil)
 (defvar isearchb-last-buffer nil)