Fix minor CheckStyle warnings

- Correct modifier order to follow JLS recommendation
- Wrap closing braces

Change-Id: Iad5d4f9dd29b9d52a76c4f3be8776e75950b5346

gerrit-gwtui/src/main/java/com/google/gerrit/client/account/MyAgreementsScreen.java

@@ -48,7 +48,8 @@ public class MyAgreementsScreen extends SettingsScreen {
       @Override
       public void preDisplay(JsArray<AgreementInfo> result) {
         agreements.display(Natives.asList(result));
-      }});
+      }
+    });
   }
 
   private static class AgreementTable extends FancyFlexTable<ContributorAgreement> {

gerrit-gwtui/src/main/java/com/google/gerrit/client/account/NewAgreementScreen.java

@@ -85,7 +85,8 @@ public class NewAgreementScreen extends AccountScreen {
           }
           postRPC();
         }
-      }});
+      }
+    });
 
     available = Gerrit.info().auth().contributorAgreements();
     postRPC();