Clarify and add more details to some log messages

Change-Id: I3b9df11748e41e857ed0bc3e166d1434743902de
diff --git a/providers/lldpcommon/src/main/java/org/onosproject/provider/lldpcommon/LinkDiscovery.java b/providers/lldpcommon/src/main/java/org/onosproject/provider/lldpcommon/LinkDiscovery.java
index ea8a80d..671e6d0 100644
--- a/providers/lldpcommon/src/main/java/org/onosproject/provider/lldpcommon/LinkDiscovery.java
+++ b/providers/lldpcommon/src/main/java/org/onosproject/provider/lldpcommon/LinkDiscovery.java
@@ -265,7 +265,7 @@
         if (context.packetService() == null) {
             return;
         }
-        log.trace("Sending probes out to {}@{}", portNumber, device.id());
+        log.trace("Sending probes out of {}@{}", portNumber, device.id());
         OutboundPacket pkt = createOutBoundLldp(portNumber);
         context.packetService().emit(pkt);
         if (context.useBddp()) {