Tetgen exception is not relevant since Gmsh 4

LICENSE.txt

@@ -2,14 +2,14 @@ Gmsh is provided under the terms of the GNU General Public License
 (GPL), Version 2 or later, with the following exception:
 
   The copyright holders of Gmsh give you permission to combine Gmsh
-  with code included in the standard release of TetGen (from Hang 
-  Si), Netgen (from Joachim Sch"oberl), METIS (from George Karypis
-  at the University of Minnesota), OpenCASCADE (from Open CASCADE
-  S.A.S) and ParaView (from Kitware, Inc.) under their respective
-  licenses. You may copy and distribute such a system following the
-  terms of the GNU GPL for Gmsh and the licenses of the other code
-  concerned, provided that you include the source code of that other
-  code when and as the GNU GPL requires distribution of source code.
+  with code included in the standard release of Netgen (from Joachim
+  Sch"oberl), METIS (from George Karypis at the University of
+  Minnesota), OpenCASCADE (from Open CASCADE S.A.S) and ParaView
+  (from Kitware, Inc.) under their respective licenses. You may copy
+  and distribute such a system following the terms of the GNU GPL for
+  Gmsh and the licenses of the other code concerned, provided that
+  you include the source code of that other code when and as the GNU
+  GPL requires distribution of source code.
 
   Note that people who make modified versions of Gmsh are not
   obligated to grant this special exception for their modified