Checkstyle: Update for new license headers.

config/checkstyle.xml

@@ -61,7 +61,7 @@
   <!-- See http://checkstyle.sf.net/config_header.html -->
   <module name="RegexpHeader">
     <property name="header"
-      value="^/\*{79}$\n^ \* Copyright \(c\) \d\d\d\d.*$\n^ \* All rights reserved\. This program and the accompanying materials$\n^ \* are made available under the terms of the Eclipse Public License v1\.0$\n^ \* which accompanies this distribution, and is available at$\n^ \* http://www\.eclipse\.org/legal/epl-v10\.html$\n" />
+      value="^/\*{79}$\n^ \* Copyright \(c\) \d\d\d\d.*$\n^ \*\s*$\n^ \* This program and the accompanying materials are made available under the$\n^ \* terms of the Eclipse Public License 2\.0 which is available at$\n^ \* which accompanies this distribution, and is available at$\n^ \* http://www\.eclipse\.org/legal/epl-2\.0\.$\n^ \*\s*$\n^ \* SPDX-License-Identifier: EPL-2\.0$\n^ \*{79}/$\n" />
     <property name="fileExtensions"
       value="java,c,xtext,xtend"/>
   </module>