Fix upcoming checkstyle issues

When we upgrade to oparent, these will fail as oparent upgrades
to 8.37 of puppycrawl which fixes a few bugs that should have
flagged these previously.

Issue-ID: POLICY-2887
Change-Id: I2ea37eef859aac08f54ffd1f4b1d6b9e702218e9
Signed-off-by: Pamela Dragosh <pdragosh@research.att.com>
diff --git a/controlloop/common/eventmanager/src/main/java/org/onap/policy/controlloop/eventmanager/ControlLoopOperationManager2.java b/controlloop/common/eventmanager/src/main/java/org/onap/policy/controlloop/eventmanager/ControlLoopOperationManager2.java
index 62d4fc8..ea269fe 100644
--- a/controlloop/common/eventmanager/src/main/java/org/onap/policy/controlloop/eventmanager/ControlLoopOperationManager2.java
+++ b/controlloop/common/eventmanager/src/main/java/org/onap/policy/controlloop/eventmanager/ControlLoopOperationManager2.java
@@ -275,7 +275,7 @@
     /**
      * Start the operation, after the lock has been acquired.
      *
-     * @return
+     * @return CompletableFuture for the operation being started
      */
     private CompletableFuture<OperationOutcome> startOperation() {
         // @formatter:off