Better error response when fetching attachments. Props DD32. see #7944

git-svn-id: https://develop.svn.wordpress.org/trunk@9327 602fd350-edb4-49c9-b593-d223f7449a82

wp-includes/functions.php

@@ -1051,6 +1051,8 @@ function wp_get_http( $url, $file_path = false, $deprecated = false ) {
 		return false;
 
 	$headers = wp_remote_retrieve_headers( $response );
+	$headers['response'] = $response['response']['code'];
+
 	if ( false == $file_path )
 		return $headers;