update jdt.core to 4.9RC2

- includes migration to EPL v2.0
diff --git a/org.eclipse.jdt.core/scripts/export-ejavac.xml b/org.eclipse.jdt.core/scripts/export-ejavac.xml
index 22e0ccc..5a5983a 100644
--- a/org.eclipse.jdt.core/scripts/export-ejavac.xml
+++ b/org.eclipse.jdt.core/scripts/export-ejavac.xml
@@ -1,10 +1,13 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!--
     Copyright (c) 2007, 2009 IBM Corporation and others.
-    All rights reserved. This program and the accompanying materials
-    are made available under the terms of the Eclipse Public License v1.0
+
+    This program and the accompanying materials
+    are made available under the terms of the Eclipse Public License 2.0
     which accompanies this distribution, and is available at
-    http://www.eclipse.org/legal/epl-v10.html
+    https://www.eclipse.org/legal/epl-2.0/
+
+    SPDX-License-Identifier: EPL-2.0
     
     Contributors:
         IBM Corporation - initial API and implementation