[gnome-music] Use in rtl-symbolic instead in symbol in the opposite direction

[Vadim Rutkovsky <vrutkovsky src gnome org>]

commit 994502586c434ff214afdf3d888789a2088293fd
Author: Yosef Or Boczko <yosefor3 walla com>
Date:   Thu Jun 20 20:10:56 2013 +0300

    Use in rtl-symbolic instead in symbol in the opposite direction
    
    https://bugzilla.gnome.org/show_bug.cgi?id=702760

 src/toolbar.js |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/toolbar.js b/src/toolbar.js
index cf33c1f..99be24c 100644
--- a/src/toolbar.js
+++ b/src/toolbar.js
@@ -107,7 +107,7 @@ const Toolbar = new Lang.Class({
     _addBackButton: function() {
         let iconName =
             (this.get_direction() == Gtk.TextDirection.RTL) ?
-            'go-next-symbolic' : 'go-previous-symbolic';
+            'go-previous-rtl-symbolic' : 'go-previous-symbolic';
         this._backButton = new Gd.HeaderSimpleButton({ symbolic_icon_name: iconName,
                                                      label: _("Back") });
         this._backButton.connect('clicked', Lang.bind(this, this.setState))