Updates the license plugin

Signed-off-by: Patrick Reinhart <[email protected]>

Author: reinhapa

exist-parent/pom.xml

@@ -956,6 +956,7 @@
                             <excludes>
                                 <exclude>FDB-backport-LGPL-21-ONLY-license.template.txt</exclude>
                                 <exclude>FDB-backport-LGPL-21-ONLY-license.xml.template.txt</exclude>
+                                <exclude>LGPL-21-license.template.txt</exclude>                    
                                 <exclude>LGPL-21-license.txt</exclude>
                             </excludes>
                         </licenseSet>