[novamov] Modernize

youtube_dl/extractor/novamov.py

@@ -42,8 +42,7 @@ class NovaMovIE(InfoExtractor):
     }
 
     def _real_extract(self, url):
-        mobj = re.match(self._VALID_URL, url)
-        video_id = mobj.group('id')
+        video_id = self._match_id(url)
 
         url = 'http://%s/video/%s' % (self._HOST, video_id)