[ct_error_printer} Do not format exception when expecting an exception.

Summary:
When one uses assertException(..., ...), the "received exeption" was printer using erl_error:format_exception(....), whereas the "expected exception" was not.

This lead to difference in format that made them hard to compare.

In this diff, we print resulted exception using the usual "~p", to make it comparable to the expected one.

Reviewed By: alanz

Differential Revision: D68023395

fbshipit-source-id: e40df50bfb5096fa88712bc5bc31a03ab13cc2ff

prelude/erlang/common_test/common/src/ct_error_printer.erl

@@ -224,8 +224,8 @@ format_assert0(
                 io_lib:format("          got value: ~p~n", [Value]);
             #{unexpected_exception := {Class, Reason, StackTrace} = _Exception} ->
                 io_lib:format(
-                    "      got exception: ~s ~n",
-                    [erl_error:format_exception(Class, Reason, StackTrace)]
+                    "      got exception: ~p ~n",
+                    [{Class, Reason, StackTrace}]
                 );
             _ ->
                 unrecognized_error