Fix test

Didn't use .lower() as planned, so update test with new ID.

youtube_dl/extractor/nrk.py

@@ -79,7 +79,7 @@ class NRKTVIE(InfoExtractor):
             'url': 'http://tv.nrk.no/serie/20-spoersmaal-tv/MUHH48000314/23-05-2014',
             'md5': '7b96112fbae1faf09a6f9ae1aff6cb84',
             'info_dict': {
-                'id': 'muhh48000314',
+                'id': 'MUHH48000314',
                 'ext': 'flv',
                 'title': '20 spørsmål',
                 'description': 'md5:bdea103bc35494c143c6a9acdd84887a',