ns2: improve log line when receving a PDU with wrong NSE

Change-Id: I072510461fb426fa62ca20c5103764b0efd25f82
diff --git a/src/gb/gprs_ns2_vc_fsm.c b/src/gb/gprs_ns2_vc_fsm.c
index aa6613b..726fc0c 100644
--- a/src/gb/gprs_ns2_vc_fsm.c
+++ b/src/gb/gprs_ns2_vc_fsm.c
@@ -876,7 +876,7 @@
 			if (nsh->pdu_type == NS_PDUT_RESET)
 				ns2_tx_reset_ack(nsvc);
 
-			LOG_NS_SIGNAL(nsvc, "Rx", nsh->pdu_type, LOGL_ERROR, " with wrong NSEI=%05u. Ignoring PDU.\n", nsei);
+			LOG_NS_SIGNAL(nsvc, "Rx", nsh->pdu_type, LOGL_ERROR, " with wrong NSEI (exp: %05u, got %05u). Ignoring PDU.\n", nsvc->nse->nsei, nsei);
 			goto out;
 		}
 	}