anchor.diff:  
     ; v0.1 - 2016.09.28 - Added 3D polyline management
     ; v0.0 - 2019.??.?? - First issue
  -  ; Author: David Torralban
  +  ; Author: David Torralba
     ; Last revision: 2016.09.28
   )
   (defun c:PK( / ent centreline_VL_ent_name ans i pt ch)
  
positive.code:   (princ)
  
    ; v0.0 - 2016.08.30 - First issue
    ; Author: David Torralban
    ; Last revision: 2016.08.30
  );END defun
  (defun c:lb( / ans)
  
negative.code:   );END cond
    (princ)
    ; v0.0 - 2016.09.08 - First issue
    ; Author: David Torralba
    ; Last revision: 2016.09.08
  );END defun
  (defun PrintDateTime( / d)
  