Fix runtime of P4-related stuff with new karaf

Change-Id: I139575d5b038224ca8ccce4ec71ec8a84b35dfeb
diff --git a/protocols/gnmi/ctl/src/main/java/org/onosproject/gnmi/ctl/GnmiControllerImpl.java b/protocols/gnmi/ctl/src/main/java/org/onosproject/gnmi/ctl/GnmiControllerImpl.java
index cf14712..13ab168 100644
--- a/protocols/gnmi/ctl/src/main/java/org/onosproject/gnmi/ctl/GnmiControllerImpl.java
+++ b/protocols/gnmi/ctl/src/main/java/org/onosproject/gnmi/ctl/GnmiControllerImpl.java
@@ -36,6 +36,7 @@
 public class GnmiControllerImpl
         extends AbstractGrpcClientController<GnmiClientKey, GnmiClient, GnmiEvent, GnmiEventListener>
         implements GnmiController {
+
     private final Logger log = getLogger(getClass());
 
     @Activate