[douyutv] Add localized name

youtube_dl/extractor/douyutv.py

@@ -9,6 +9,7 @@ from ..compat import (compat_str, compat_basestring)
 
 
 class DouyuTVIE(InfoExtractor):
+    IE_DESC = '斗鱼'
     _VALID_URL = r'http://(?:www\.)?douyutv\.com/(?P<id>[A-Za-z0-9]+)'
     _TESTS = [{
         'url': 'http://www.douyutv.com/iseven',