tracks/ocaml/tools/test-generator/templates/ocaml/phone-number/test.ml in trackler-2.2.1.116 vs tracks/ocaml/tools/test-generator/templates/ocaml/phone-number/test.ml in trackler-2.2.1.117

@@ -1,14 +1,14 @@
-open Core
+open Base
 open OUnit2
 open Phone_number
 
 let option_to_string f = function
   | None   -> "None"
   | Some x -> "Some " ^ f x
 
 let ae exp got _test_ctxt =
-  assert_equal ~printer:(option_to_string String.to_string) exp got
+  assert_equal ~printer:(option_to_string Fn.id) exp got
 
 let tests = [
 (* TEST
   "$description" >::
     ae $expected (number $phrase);