Add alt to Tests_Image_Meta::data_stream() metadata

Author: sabernhardt

tests/phpunit/tests/image/meta.php

@@ -200,6 +200,7 @@ public function data_stream() {
 					'title'             => '',
 					'orientation'       => '3',
 					'keywords'          => array(),
+					'alt'               => '',
 				),
 			),
 			'Exif from a Nikon D70 with IPTC data added later' => array(
@@ -217,6 +218,7 @@ public function data_stream() {
 					'title'             => 'IPTC Headline',
 					'orientation'       => '0',
 					'keywords'          => array(),
+					'alt'               => '',
 				),
 			),
 			'Exif from a DMC-LX2 camera with keywords' => array(
@@ -234,6 +236,7 @@ public function data_stream() {
 					'title'             => 'Photoshop Document Ttitle',
 					'orientation'       => '1',
 					'keywords'          => array( 'beach', 'baywatch', 'LA', 'sunset' ),
+					'alt'               => '',
 				),
 			),
 		);