Fix formatting

Author: lhotari

tests/backward-compat/upgrade/src/test/groovy/org/apache/bookkeeper/tests/backwardcompat/TestCompatUpgrade.groovy

@@ -17,6 +17,8 @@
 */
 package org.apache.bookkeeper.tests.backwardcompat
 
+import static org.apache.bookkeeper.tests.integration.utils.BookKeeperClusterUtils.*
+
 import com.github.dockerjava.api.DockerClient
 import org.apache.bookkeeper.tests.integration.utils.BookKeeperClusterUtils
 import org.apache.bookkeeper.tests.integration.utils.MavenClassLoader
@@ -30,8 +32,6 @@ import org.junit.runners.MethodSorters
 import org.slf4j.Logger
 import org.slf4j.LoggerFactory
 
-import static org.apache.bookkeeper.tests.integration.utils.BookKeeperClusterUtils.*
-
 @RunWith(Arquillian.class)
 @FixMethodOrder(MethodSorters.NAME_ASCENDING)
 class TestCompatUpgrade {