[chronojump] Fixed jumps simple graph show black outline at bottom

[Xavier de Blas <xaviblas src gnome org>]

commit e7534e604091616856855e02f4326f10739bb253
Author: Xavier de Blas <xaviblas gmail com>
Date:   Wed Dec 11 14:59:40 2019 +0100

    Fixed jumps simple graph show black outline at bottom

 src/gui/eventExecute.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/gui/eventExecute.cs b/src/gui/eventExecute.cs
index 6b5ffb03..5e26e1d0 100644
--- a/src/gui/eventExecute.cs
+++ b/src/gui/eventExecute.cs
@@ -1117,7 +1117,7 @@ public partial class ChronoJumpWindow
                        GLib.Timeout.Add(1, new GLib.TimeoutHandler(OnTimerBar));
                }
                else {
-                       Rectangle rect = new Rectangle(x, y, barWidth, alto);
+                       Rectangle rect = new Rectangle(x, y, barWidth, alto-y-1);
                        event_execute_pixmap.DrawRectangle(pen_bar_bg, true, rect);
                        event_execute_pixmap.DrawRectangle(pen_black, false, rect);