fix typo

server/djrandom/scanner/scanner.py

@@ -48,7 +48,7 @@ class Scanner(object):
                 mp3.state = MP3.READY
             except BadMetadataError:
                 log.info('bad metadata for %s' % mp3.sha1)
-                mp3.state = MP3_BAD_METADATA
+                mp3.state = MP3.BAD_METADATA
             except Exception, e:
                 log.error(traceback.format_exc())
                 mp3.state = MP3.ERROR