Format Copyright Headers in Sandbox

Issue gh-747

sandbox/src/main/java/org/springframework/ldap/control/VirtualListViewControlAggregateDirContextProcessor.java

@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.springframework.ldap.control;
 
 import org.springframework.ldap.core.support.AggregateDirContextProcessor;