From 5cc8fc22a91bada73ce5f633af025b5d729061de Mon Sep 17 00:00:00 2001
From: westi <westi@1a063a9b-81f0-0310-95a4-ce76da25c4cd>
Date: Wed, 23 Sep 2009 06:51:19 +0000
Subject: [PATCH] Fix notice in wp_explain_nonce when the supplied action has
 no extra text. See #10830.

git-svn-id: http://svn.automattic.com/wordpress/trunk@11961 1a063a9b-81f0-0310-95a4-ce76da25c4cd
---
 wp-includes/functions.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/wp-includes/functions.php b/wp-includes/functions.php
index 6bfc69e51..f42dd607b 100644
--- a/wp-includes/functions.php
+++ b/wp-includes/functions.php
@@ -2407,7 +2407,7 @@ function wp_explain_nonce( $action ) {
 			}
 		}
 
-		return apply_filters( 'explain_nonce_' . $verb . '-' . $noun, __( 'Are you sure you want to do this?' ), $matches[4] );
+		return apply_filters( 'explain_nonce_' . $verb . '-' . $noun, __( 'Are you sure you want to do this?' ), isset($matches[4]) ? $matches[4] : '' );
 	} else {
 		return apply_filters( 'explain_nonce_' . $action, __( 'Are you sure you want to do this?' ) );
 	}