cmd+lntest: use the new rpc field Payment_INITIATED

cmd/lncli/cmd_payments.go

@@ -662,7 +662,9 @@ func printLivePayment(ctxc context.Context,
 		}
 
 		// Terminate loop if payments state is final.
-		if payment.Status != lnrpc.Payment_IN_FLIGHT {
+		if payment.Status != lnrpc.Payment_IN_FLIGHT &&
+			payment.Status != lnrpc.Payment_INITIATED {
+
 			return payment, nil
 		}
 	}

itest/lnd_max_htlcs_test.go

@@ -136,7 +136,7 @@ func acceptHoldInvoice(ht *lntest.HarnessTest, idx int, sender,
 	// the payer to get one update for the creation of the payment, and
 	// another when a htlc is dispatched.
 	payment := ht.AssertPaymentStatusFromStream(
-		payStream, lnrpc.Payment_IN_FLIGHT,
+		payStream, lnrpc.Payment_INITIATED,
 	)
 	require.Empty(ht, payment.Htlcs)