[SEBA-882] add Sadis server

Change-Id: I2c973a940ccf1398b1c122908769e806eaa1dd14
diff --git a/internal/bbsim/devices/olt.go b/internal/bbsim/devices/olt.go
index c249f62..5d6e571 100644
--- a/internal/bbsim/devices/olt.go
+++ b/internal/bbsim/devices/olt.go
@@ -245,7 +245,7 @@
 	reflection.Register(grpcServer)
 
 	go grpcServer.Serve(lis)
-	oltLogger.Debugf("OLT Listening on: %v", address)
+	oltLogger.Debugf("OLT listening on %v", address)
 
 	return grpcServer, nil
 }