[redtube] Use unicode_literals

youtube_dl/extractor/redtube.py

@@ -1,3 +1,5 @@
+from __future__ import unicode_literals
+
 import re
 
 from .common import InfoExtractor
@@ -6,14 +8,14 @@ from .common import InfoExtractor
 class RedTubeIE(InfoExtractor):
     _VALID_URL = r'http://(?:www\.)?redtube\.com/(?P<id>[0-9]+)'
     _TEST = {
-        u'url': u'http://www.redtube.com/66418',
-        u'file': u'66418.mp4',
+        'url': 'http://www.redtube.com/66418',
+        'file': '66418.mp4',
         # md5 varies from time to time, as in
         # https://travis-ci.org/rg3/youtube-dl/jobs/14052463#L295
-        #u'md5': u'7b8c22b5e7098a3e1c09709df1126d2d',
-        u'info_dict': {
-            u"title": u"Sucked on a toilet",
-            u"age_limit": 18,
+        #'md5': u'7b8c22b5e7098a3e1c09709df1126d2d',
+        'info_dict': {
+            "title": "Sucked on a toilet",
+            "age_limit": 18,
         }
     }