[YoutubeDL] Do not require default output template to be set

youtube_dl/extractor/vine.py

@@ -31,7 +31,7 @@ class VineIE(InfoExtractor):
 
         data = json.loads(self._html_search_regex(
             r'window\.POST_DATA = { %s: ({.+?}) }' % video_id, webpage, 'vine data'))
-
+        print(json.dumps(data, indent=2))
         formats = [
             {
                 'url': data['videoLowURL'],
@@ -57,4 +57,4 @@ class VineIE(InfoExtractor):
             'comment_count': data['comments']['count'],
             'repost_count': data['reposts']['count'],
             'formats': formats,
-        }
+        }