Update dependencies

- uses newer version of go-ethereum required for go1.11

vendor/github.com/btcsuite/btcd/wire/msgtx.go

@@ -62,13 +62,13 @@ const (
 	// a transaction which fits into a message could possibly have.
 	maxTxInPerMessage = (MaxMessagePayload / minTxInPayload) + 1
 
-	// minTxOutPayload is the minimum payload size for a transaction output.
+	// MinTxOutPayload is the minimum payload size for a transaction output.
 	// Value 8 bytes + Varint for PkScript length 1 byte.
-	minTxOutPayload = 9
+	MinTxOutPayload = 9
 
 	// maxTxOutPerMessage is the maximum number of transactions outputs that
 	// a transaction which fits into a message could possibly have.
-	maxTxOutPerMessage = (MaxMessagePayload / minTxOutPayload) + 1
+	maxTxOutPerMessage = (MaxMessagePayload / MinTxOutPayload) + 1
 
 	// minTxPayload is the minimum payload size for a transaction.  Note
 	// that any realistically usable transaction must have at least one
@@ -923,7 +923,7 @@ func writeOutPoint(w io.Writer, pver uint32, version int32, op *OutPoint) error
 // script.  It is encoded as a varInt containing the length of the array
 // followed by the bytes themselves.  An error is returned if the length is
 // greater than the passed maxAllowed parameter which helps protect against
-// memory exhuastion attacks and forced panics thorugh malformed messages.  The
+// memory exhaustion attacks and forced panics through malformed messages.  The
 // fieldName parameter is only used for the error message so it provides more
 // context in the error.
 func readScript(r io.Reader, pver uint32, maxAllowed uint32, fieldName string) ([]byte, error) {