Add copyright

src/wallet/db.cpp

@@ -1,8 +1,8 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
 // Copyright (c) 2009-2014 The Bitcoin Core developers
+// Copyright (c) 2016-2021 The Hush developers
 // Distributed under the GPLv3 software license, see the accompanying
 // file COPYING or https://www.gnu.org/licenses/gpl-3.0.en.html
-
 /******************************************************************************
  * Copyright © 2014-2019 The SuperNET Developers.                             *
  *                                                                            *
@@ -19,13 +19,11 @@
  ******************************************************************************/
 
 #include "db.h"
-
 #include "addrman.h"
 #include "hash.h"
 #include "protocol.h"
 #include "util.h"
 #include "utilstrencodings.h"
-
 #include <stdint.h>
 
 #ifndef _WIN32
@@ -38,13 +36,9 @@
 
 using namespace std;
 
-
 unsigned int nWalletDBUpdated;
 
-
-//
 // CDB
-//
 
 CDBEnv bitdb;