multi: rename key_send, key-send and key send to keysend

lntest/itest/lnd_single_hop_invoice_test.go

@@ -140,7 +140,7 @@ func testSingleHopInvoice(net *lntest.NetworkHarness, t *harnessTest) {
 		t.Fatalf(err.Error())
 	}
 
-	// Next send a key send payment.
+	// Next send a keysend payment.
 	keySendPreimage := lntypes.Preimage{3, 4, 5, 11}
 	keySendHash := keySendPreimage.Hash()
 
@@ -162,7 +162,7 @@ func testSingleHopInvoice(net *lntest.NetworkHarness, t *harnessTest) {
 		t.Fatalf("error when attempting recv: %v", resp.PaymentError)
 	}
 
-	// The key send payment should also have succeeded, with the balances
+	// The keysend payment should also have succeeded, with the balances
 	// being update accordingly.
 	err = wait.NoError(
 		assertAmountSent(3*paymentAmt, net.Alice, net.Bob),

lntest/node.go

@@ -228,7 +228,7 @@ func (cfg NodeConfig) genArgs() []string {
 	}
 
 	if cfg.AcceptKeySend {
-		args = append(args, "--accept-key-send")
+		args = append(args, "--accept-keysend")
 	}
 
 	return args
@@ -317,9 +317,9 @@ func newNode(cfg NodeConfig) (*HarnessNode, error) {
 
 	cfg.P2PPort, cfg.RPCPort, cfg.RESTPort, cfg.ProfilePort = generateListeningPorts()
 
-	// Run all tests with accept key send. The key send code is very
-	// isolated and it is highly unlikely that it would affect regular
-	// itests when enabled.
+	// Run all tests with accept keysend. The keysend code is very isolated
+	// and it is highly unlikely that it would affect regular itests when
+	// enabled.
 	cfg.AcceptKeySend = true
 
 	numActiveNodesMtx.Lock()