Fix name of attribute that newsznab returns

sickbeard/providers/newznab.py

@@ -423,7 +423,7 @@ class NewznabCache(tvcache.TVCache):
 
         tvrageid = 0
         for attr in item['newznab_attr'] if isinstance(item['newznab_attr'], list) else [item['newznab_attr']]:
-            if attr['name'] == 'tvrageid':
+            if attr['name'] == 'tvrageid' or attr['name'] == 'rageid':
                 tvrageid = int(attr['value'] or 0)
                 break