Disable logging of non-critical issues caused by tests

Author: marcphilipp

jupiter-tests/src/test/resources/log4j2-test.xml

@@ -9,6 +9,7 @@
 		<Logger name="org.junit" level="warn" />
 		<Logger name="org.junit.jupiter.api" level="off" />
 		<Logger name="org.junit.jupiter.engine" level="off" />
+		<Logger name="org.junit.platform.launcher.core.DiscoveryIssueNotifier" level="off" />
 		<Logger name="org.junit.platform.launcher.listeners.discovery.LoggingLauncherDiscoveryListener" level="off" />
 		<Logger name="org.junit.jupiter.engine.extension.MutableExtensionRegistry" level="off" />
 		<Logger name="org.junit.jupiter.engine.extension.TempDirectory$CloseablePath" level="off" />