diff --git a/3-mid/physics/implement/box2d/source/thin/box2d_c.ads b/3-mid/physics/implement/box2d/source/thin/box2d_c.ads
index 4e64c9f..e8cabf9 100644
--- a/3-mid/physics/implement/box2d/source/thin/box2d_c.ads
+++ b/3-mid/physics/implement/box2d/source/thin/box2d_c.ads
@@ -10,31 +10,31 @@ use  Interfaces.C;
 package box2d_c is
 
    -- Shape
-   -- 
+   --
    subtype Shape is swig.opaque_structure;
 
    type Shape_array is array (interfaces.C.Size_t range <>) of aliased box2d_c.Shape;
 
    -- Object
-   -- 
+   --
    subtype Object is swig.opaque_structure;
 
    type Object_array is array (interfaces.C.Size_t range <>) of aliased box2d_c.Object;
 
    -- Joint
-   -- 
+   --
    subtype Joint is swig.opaque_structure;
 
    type Joint_array is array (interfaces.C.Size_t range <>) of aliased box2d_c.Joint;
 
    -- Space
-   -- 
+   --
    subtype Space is swig.opaque_structure;
 
    type Space_array is array (interfaces.C.Size_t range <>) of aliased box2d_c.Space;
 
    -- b2Joint
-   -- 
+   --
    subtype b2Joint is swig.opaque_structure;
 
    type b2Joint_array is array (interfaces.C.Size_t range <>) of aliased box2d_c.b2Joint;