Internal links from Discogs release pages to the associated master page look like http://www.discogs.com/master/view/267989, whereas the canonical format is http://www.discogs.com/master/267989. This should be cleaned up.

(Reported here: http://chatlogs.musicbrainz.org/musicbrainz/2014/2014-01/2014-01-04.html#T20-31-01-569086)