DialectMariaDBTest: Add missing @Override annotation

Change-Id: I92acc4b0e64b680eb65b568617ef41f946e4bd2f

src/test/java/com/google/gwtorm/schema/sql/DialectMariaDBTest.java

diff --git a/src/test/java/com/google/gwtorm/schema/sql/DialectMariaDBTest.java b/src/test/java/com/google/gwtorm/schema/sql/DialectMariaDBTest.java
index b00ee5d..dee586b 100644
--- a/src/test/java/com/google/gwtorm/schema/sql/DialectMariaDBTest.java
+++ b/src/test/java/com/google/gwtorm/schema/sql/DialectMariaDBTest.java
@@ -26,6 +26,7 @@
 import org.junit.Before;
 
 public class DialectMariaDBTest extends DialectMySQLTest {
+  @Override
   @Before
   public void setUp() throws Exception {
     Class.forName(org.mariadb.jdbc.Driver.class.getName());