minor

examples/monitorme.cpp

@@ -175,6 +175,8 @@ struct MonTracker : public pvac::ClientChannel::MonitorCallback,
             if(n==2) {
                 // too many updates, re-queue to balance with others
                 monwork.push(shared_from_this(), evt);
+            } else if(n==0) {
+                std::cerr<<"Spurious Data event "<<name<<"\n";
             }
         }
             break;