multi: fix some function names in interface comment

Signed-off-by: chuangjinglu <chuangjinglu@outlook.com>

input/input.go

@@ -19,7 +19,7 @@ var EmptyOutPoint wire.OutPoint
 // construct a valid input within a sweeping transaction to sweep this
 // lingering UTXO.
 type Input interface {
-	// Outpoint returns the reference to the output being spent, used to
+	// OutPoint returns the reference to the output being spent, used to
 	// construct the corresponding transaction input.
 	OutPoint() wire.OutPoint
 

input/mocks.go

@@ -24,7 +24,7 @@ type MockInput struct {
 // Compile time assertion that MockInput implements Input.
 var _ Input = (*MockInput)(nil)
 
-// Outpoint returns the reference to the output being spent, used to construct
+// OutPoint returns the reference to the output being spent, used to construct
 // the corresponding transaction input.
 func (m *MockInput) OutPoint() wire.OutPoint {
 	args := m.Called()

sweep/walletsweep.go

@@ -152,8 +152,9 @@ func (f FeeEstimateInfo) Estimate(estimator chainfee.Estimator,
 // UtxoSource is an interface that allows a caller to access a source of UTXOs
 // to use when crafting sweep transactions.
 type UtxoSource interface {
-	// ListUnspentWitness returns all UTXOs from the default wallet account
-	// that have between minConfs and maxConfs number of confirmations.
+	// ListUnspentWitnessFromDefaultAccount returns all UTXOs from the
+	// default wallet account that have between minConfs and maxConfs
+	// number of confirmations.
 	ListUnspentWitnessFromDefaultAccount(minConfs, maxConfs int32) (
 		[]*lnwallet.Utxo, error)
 }

watchtower/wtwire/message.go

@@ -92,7 +92,7 @@ type Message interface {
 	// be encoded.
 	MsgType() MessageType
 
-	// MaxMessagePayload is the maximum serialized length that a particular
+	// MaxPayloadLength is the maximum serialized length that a particular
 	// message type can take.
 	MaxPayloadLength(uint32) uint32
 }