[gnome-music] Fix crash in escaping some song titles

[Vadim Rutkovsky <vrutkovsky src gnome org>]

commit e7bb4a378c051ac1af494165b277be3651c224f5
Author: Stefano Facchini <stefano facchini gmail com>
Date:   Wed Jul 10 19:09:20 2013 +0200

    Fix crash in escaping some song titles
    
    https://bugzilla.gnome.org/show_bug.cgi?id=703963

 src/widgets.js |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/widgets.js b/src/widgets.js
index 5c3b2ba..36fd32a 100644
--- a/src/widgets.js
+++ b/src/widgets.js
@@ -245,7 +245,7 @@ const AlbumWidget = new Lang.Class({
                     tracks.push(track);
                     duration = duration + track.get_duration();
                     let iter = this.model.append();
-                    let escapedTitle = GLib.markup_escape_text(track.get_title(), track.get_title().length);
+                    let escapedTitle = GLib.markup_escape_text(track.get_title(), -1);
                     try{
                         this.player.discoverer.discover_uri(track.get_url());
                         this.model.set(iter,