added another test module to examples/scad_to_include.scad

	(and added missing newline before EOF)

Author: jeff-dh

solid/examples/scad_to_include.scad

@@ -13,11 +13,13 @@ module steps(howmany=3){
     }
 }
 
+module blub(a) cube([a, 2, 2]);
+
 function scad_points() = [[0,0], [1,0], [0,1]];
 
 // In Python, calling this function without an argument would be an error.
 // Leave this here to confirm that this works in OpenSCAD.
 function optional_nondefault_arg(arg1) =
   let(s = arg1 ? arg1 : 1) cube([s,s,s]);
 
-echo("This text should appear only when called with include(), not use()");
+echo("This text should appear only when called with include(), not use()");