ocarina: Return index of searched track

And not the index of the current iterator.

Signed-off-by: Bryan Schumaker <bjschuma@gmail.com>

libsaria/playlist/playlist.cpp

@@ -135,7 +135,7 @@ namespace libsaria
 		list<Track *>::iterator it;
 		unsigned int index = 0;
 
-		for (it = plist.begin(); it != cur; it++) {
+		for (it = plist.begin(); it != plist.end(); it++) {
 			if (*it == track)
 				return index;
 			index++;