[ci skip] Fix warnings in functions.inc and glass_old.inc.

Author: c-lipka

distribution/include/functions.inc

@@ -2,18 +2,18 @@
 // To view a copy of this license, visit http://creativecommons.org/licenses/by-sa/3.0/ or send a
 // letter to Creative Commons, 444 Castro Street, Suite 900, Mountain View, California, 94041, USA.
 
-//    Persistence of Vision Ray Tracer version 3.5 Include File
+//    Persistence of Vision Ray Tracer version 3.8 Include File
 
 #ifndef(Functions_Inc_Temp)
 #declare Functions_Inc_Temp = version;
-#version 3.5;
+#version 3.8;
 
 #ifdef(View_POV_Include_Stack)
 #   debug "including function.inc\n"
 #end
 
 /*
-              Persistence of Vision Raytracer Version 3.5
+              Persistence of Vision Raytracer Version 3.8
             Many pre-defined functions for use in scene files.
 */
 

distribution/include/glass_old.inc

@@ -4,13 +4,15 @@
 
 //    Persistence of Vision Ray Tracer Include File
 //    File: glass_old.inc
-//    Last updated: 2001.8.9
+//    Last updated: 2021-08-09
 //    Description: Glass finishes and textures (was glass.inc in versions prior to 3.5).
 //    Changes in version 3.1: moved refraction and ior to the interior statment.
 //    Use I_Glass in conjunction with each of the finish statments below.
 //    Version 3.5: Renamed file as glass_old.inc.
+//    Version 3.8: Added deprecation warnings.
 //
-//    Updated: 27Sep2008(jh)
+//    Updated: 2008-09-27 (jh)
+//    Updated: 2021-08-09 (CLi)
 //
 //    To suppress warnings generated from using these deprecated textures you should consider
 //    converting them to materials.
@@ -27,7 +29,7 @@
 
 #ifndef(Glass_Old_Inc_Temp)
 #declare Glass_Old_Inc_Temp=version;
-#version 3.5;
+#version 3.8;
 
 #ifdef(View_POV_Include_Stack)
     #debug "including glass_old.inc\n"