Corrected JavaDoc comment

jme3-bullet/src/main/java/com/jme3/bullet/PhysicsSpace.java

@@ -845,7 +845,7 @@ public class PhysicsSpace {
     /**
      * Performs a sweep collision test and returns the results as a list of
      * PhysicsSweepTestResults<br/> You have to use different Transforms for
-     * start and end (at least distance > 0.4f). SweepTest will not see a
+     * start and end (at least distance > allowedCcdPenetration). SweepTest will not see a
      * collision if it starts INSIDE an object and is moving AWAY from its
      * center.
      */