tag: fixed typo in MUSICBRAINZ_TRACKID tag name

src/tag.c

@@ -59,7 +59,7 @@ const char *mpdTagItemKeys[TAG_NUM_OF_ITEM_TYPES] = {
 	[TAG_MUSICBRAINZ_ARTISTID] = "MUSICBRAINZ_ARTISTID",
 	[TAG_MUSICBRAINZ_ALBUMID] = "MUSICBRAINZ_ALBUMID",
 	[TAG_MUSICBRAINZ_ALBUMARTISTID] = "MUSICBRAINZ_ALBUMARTISTID",
-	[TAG_MUSICBRAINZ_TRACKID] = "MUSICBRAINZ_TACKID",
+	[TAG_MUSICBRAINZ_TRACKID] = "MUSICBRAINZ_TRACKID",
 };
 
 int8_t ignoreTagItems[TAG_NUM_OF_ITEM_TYPES];