gtphub: tweak startup log for sgsn_use_sender
diff --git a/openbsc/src/gprs/gtphub.c b/openbsc/src/gprs/gtphub.c
index 6762825..b123b11 100644
--- a/openbsc/src/gprs/gtphub.c
+++ b/openbsc/src/gprs/gtphub.c
@@ -2486,6 +2486,9 @@
 			    gtphub_port_str(hub->proxy[side_idx][plane_idx]));
 	}
 
+	if (hub->sgsn_use_sender)
+		LOG(LOGL_NOTICE, "Using sender address and port for SGSN instead of GSN Addr IE and default ports.");
+
 	gtphub_gc_start(hub);
 	return 0;
 }