[graph-gtk] Fixed panning

[Isaac Wagner <isaacbw src gnome org>]

commit c007c8e0884a426b93f7df64cb387581864b8ad9
Author: Isaac Wagner <isaacbw src gnome org>
Date:   Sat Aug 4 12:02:20 2012 -0400

    Fixed panning

 graph-gtk/graph-gtk-view.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/graph-gtk/graph-gtk-view.c b/graph-gtk/graph-gtk-view.c
index 555cd75..4b39391 100644
--- a/graph-gtk/graph-gtk-view.c
+++ b/graph-gtk/graph-gtk-view.c
@@ -412,7 +412,7 @@ graph_gtk_view_button_released(GtkWidget* widget, GdkEventButton* event)
 	    }
 	}
     }
-  else if(event->button == 3)
+  else if(event->button == 2)
     {
       if(self->is_mouse_panning)
 	{