fix newline char assertion for Windows

Issue #3708

Author: JonasJebing

jupiter-tests/src/test/java/org/junit/jupiter/params/ParameterizedTestIntegrationTests.java

@@ -1121,7 +1121,7 @@ void failsWithArgumentsSourceProvidingUnusedArguments() {
 				"testWithTwoUnusedStringArgumentsProvider", String.class);
 			results.allEvents().assertThatEvents() //
 					.haveExactly(1, event(EventConditions.finishedWithFailure(message(
-						"Configuration error: the @ParameterizedTest has 1 argument(s) but there were 2 argument(s) provided.\nNote: the provided arguments are [foo, unused1]"))));
+						String.format("Configuration error: the @ParameterizedTest has 1 argument(s) but there were 2 argument(s) provided.%nNote: the provided arguments are [foo, unused1]")))));
 		}
 
 		@Test
@@ -1130,7 +1130,7 @@ void failsWithMethodSourceProvidingUnusedArguments() {
 				"testWithMethodSourceProvidingUnusedArguments", String.class);
 			results.allEvents().assertThatEvents() //
 					.haveExactly(1, event(EventConditions.finishedWithFailure(message(
-						"Configuration error: the @ParameterizedTest has 1 argument(s) but there were 2 argument(s) provided.\nNote: the provided arguments are [foo, unused1]"))));
+							String.format("Configuration error: the @ParameterizedTest has 1 argument(s) but there were 2 argument(s) provided.%nNote: the provided arguments are [foo, unused1]")))));
 		}
 
 		@Test
@@ -1139,7 +1139,7 @@ void failsWithCsvSourceUnusedArgumentsAndStrictArgumentCountValidationAnnotation
 				"testWithStrictArgumentCountValidation", String.class);
 			results.allEvents().assertThatEvents() //
 					.haveExactly(1, event(EventConditions.finishedWithFailure(message(
-						"Configuration error: the @ParameterizedTest has 1 argument(s) but there were 2 argument(s) provided.\nNote: the provided arguments are [foo, unused1]"))));
+							String.format("Configuration error: the @ParameterizedTest has 1 argument(s) but there were 2 argument(s) provided.%nNote: the provided arguments are [foo, unused1]")))));
 		}
 
 		@Test