[generic] Correct test case

Video has been reuploaded / edited

youtube_dl/extractor/generic.py

@@ -532,7 +532,7 @@ class GenericIE(InfoExtractor):
             'info_dict': {
                 'id': 'Mrj4DVp2zeA',
                 'ext': 'mp4',
-                'upload_date': '20150204',
+                'upload_date': '20150212',
                 'uploader': 'The National Archives UK',
                 'description': 'md5:a236581cd2449dd2df4f93412f3f01c6',
                 'uploader_id': 'NationalArchives08',