all: fix white space (#1529)

Co-authored-by: wit <wit765765346@gmail>

bmt/bmt.go

@@ -234,8 +234,8 @@ func (t *Tree) Draw(hash []byte, d int) string {
 		}
 		row := fmt.Sprintf("%v: %v", len(hashes)-i-1, strings.Join(hash, del[:delsize]))
 		rows = append(rows, row)
-
 	}
+
 	rows = append(rows, strings.Join(left, "  "))
 	rows = append(rows, strings.Join(right, "  "))
 	return strings.Join(rows, "\n") + "\n"
@@ -413,7 +413,6 @@ func (ha *Hasher) Reset() {
 func (ha *Hasher) ResetWithLength(l []byte) {
 	ha.Reset()
 	ha.blockLength = l
-
 }
 
 // Release gives back the Tree to the pool whereby it unlocks
@@ -429,7 +428,6 @@ func (ha *Hasher) releaseTree() {
 		}
 		ha.pool.Release(ha.bmt)
 		ha.bmt = nil
-
 	}
 	ha.cur = 0
 	ha.segment = nil

core/types/lending_signing.go

@@ -200,7 +200,6 @@ func (lendingsign LendingTxSigner) Hash(tx *LendingTransaction) common.Hash {
 
 // Sender get signer from
 func (lendingsign LendingTxSigner) Sender(tx *LendingTransaction) (common.Address, error) {
-
 	message := crypto.Keccak256(
 		[]byte("\x19Ethereum Signed Message:\n32"),
 		lendingsign.Hash(tx).Bytes(),

p2p/server.go

@@ -307,7 +307,6 @@ func (srv *Server) PeerCount() int {
 // server is shut down. If the connection fails for any reason, the server will
 // attempt to reconnect the peer.
 func (srv *Server) AddPeer(node *discover.Node) {
-
 	select {
 	case srv.addstatic <- node:
 	case <-srv.quit: