Completer fixes for core ONOS CLI commands

Change-Id: Icedfc542ad93a2825b592f3deb6cd96d91779544
diff --git a/cli/src/main/java/org/onosproject/cli/net/PortStateCompleter.java b/cli/src/main/java/org/onosproject/cli/net/PortStateCompleter.java
index 888e6a2..e84140f 100644
--- a/cli/src/main/java/org/onosproject/cli/net/PortStateCompleter.java
+++ b/cli/src/main/java/org/onosproject/cli/net/PortStateCompleter.java
@@ -17,6 +17,7 @@
 
 import java.util.List;
 
+import org.apache.karaf.shell.api.action.lifecycle.Service;
 import org.onosproject.cli.AbstractChoicesCompleter;
 
 import com.google.common.collect.ImmutableList;
@@ -26,6 +27,7 @@
  *
  * Assumes argument right before the one being completed is PortNumber.
  */
+@Service
 public class PortStateCompleter extends AbstractChoicesCompleter {
 
     @Override