[chronojump] Fixed forceSensorAnalyze manual B vertical align with A

[Xavier de Blas <xaviblas src gnome org>]

commit 6f056a27d4f0a666aa2da69c8cf618b0ea4d86c9
Author: Xavier de Blas <xaviblas gmail com>
Date:   Mon May 7 17:05:04 2018 +0200

    Fixed forceSensorAnalyze manual B vertical align with A

 src/gui/forceSensorAnalyze.cs |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/gui/forceSensorAnalyze.cs b/src/gui/forceSensorAnalyze.cs
index 26085ef..9b971bb 100644
--- a/src/gui/forceSensorAnalyze.cs
+++ b/src/gui/forceSensorAnalyze.cs
@@ -712,7 +712,7 @@ public partial class ChronoJumpWindow
                        textHeight = 1;
                        layout_force_ai_text.GetPixelSize(out textWidth, out textHeight);
                        force_sensor_ai_pixmap.DrawLayout (pen_yellow_force_ai,
-                                       xposB - textWidth/2, allocation.Height -20,
+                                       xposB - textWidth/2, allocation.Height - textHeight,
                                        layout_force_ai_text);
                }