Run yapf on Spline UI

Signed-off-by: Ravago Jones <ravagojones@gmail.com>
Change-Id: I36b9b9f5da164496b3e97791ba4e6c6bb6c863d1
diff --git a/frc971/control_loops/python/spline_graph.py b/frc971/control_loops/python/spline_graph.py
index 2e67480..7bd6b45 100755
--- a/frc971/control_loops/python/spline_graph.py
+++ b/frc971/control_loops/python/spline_graph.py
@@ -36,6 +36,7 @@
 
     def undo_func(self, *args):
         self.field.undo()
+
     def long_changed(self, button):
         value = self.long_input.get_value()
         self.field.points.setConstraint("LONGITUDINAL_ACCELERATION", value)