multi: update to fn v2

chainntnfs/bitcoindnotify/bitcoind.go

@@ -15,7 +15,7 @@ import (
 	"github.com/btcsuite/btcwallet/chain"
 	"github.com/lightningnetwork/lnd/blockcache"
 	"github.com/lightningnetwork/lnd/chainntnfs"
-	"github.com/lightningnetwork/lnd/fn"
+	"github.com/lightningnetwork/lnd/fn/v2"
 	"github.com/lightningnetwork/lnd/queue"
 )
 

chainntnfs/btcdnotify/btcd.go

@@ -17,7 +17,7 @@ import (
 	"github.com/btcsuite/btcwallet/chain"
 	"github.com/lightningnetwork/lnd/blockcache"
 	"github.com/lightningnetwork/lnd/chainntnfs"
-	"github.com/lightningnetwork/lnd/fn"
+	"github.com/lightningnetwork/lnd/fn/v2"
 	"github.com/lightningnetwork/lnd/queue"
 )
 

chainntnfs/interface.go

@@ -13,7 +13,7 @@ import (
 	"github.com/btcsuite/btcd/btcutil"
 	"github.com/btcsuite/btcd/chaincfg/chainhash"
 	"github.com/btcsuite/btcd/wire"
-	"github.com/lightningnetwork/lnd/fn"
+	"github.com/lightningnetwork/lnd/fn/v2"
 )
 
 var (

chainntnfs/mocks.go

@@ -3,7 +3,7 @@ package chainntnfs
 import (
 	"github.com/btcsuite/btcd/chaincfg/chainhash"
 	"github.com/btcsuite/btcd/wire"
-	"github.com/lightningnetwork/lnd/fn"
+	"github.com/lightningnetwork/lnd/fn/v2"
 	"github.com/stretchr/testify/mock"
 )