[gnome-shell] Fix positioning of the Calendar on multihead

[Owen Taylor <otaylor src gnome org>]

commit 4c6f770dea7b06c5340778c70726949613e20327
Author: Owen W. Taylor <otaylor fishsoup net>
Date:   Wed Oct 7 14:52:18 2009 -0400

    Fix positioning of the Calendar on multihead
    
    Parens were in the wrong place, resulting in the calendar not
    being properly centered on the primary monitor.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=597078

 js/ui/panel.js |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/js/ui/panel.js b/js/ui/panel.js
index becd844..7917e34 100644
--- a/js/ui/panel.js
+++ b/js/ui/panel.js
@@ -546,7 +546,7 @@ CalendarPopup.prototype = {
         // Reset the calendar to today's date
         this.calendar.setDate(new Date());
 
-        this.actor.x = Math.round((panelActor.x + panelActor.width - this.actor.width) / 2);
+        this.actor.x = Math.round(panelActor.x + (panelActor.width - this.actor.width) / 2);
         this.actor.lower(panelActor);
         this.actor.show();
         Tweener.addTween(this.actor,