message: fix log message when requesting full block
diff: @@ -379,7 +379,7 @@ bool CGrapheneBlock::HandleMessage(CDataStream &vRecv, CNode *pfrom, std::string
  graphenedata.ClearGrapheneBlockData(pfrom, grapheneBlock.header.GetHash());
  - LOGA("%s %s from peer %s received but does not extend longest chain; requesting failover block\n",
  + LOGA("%s %s from peer %s received but does not extend longest chain; requesting full block\n",
  strCommand, inv.hash.ToString(), pfrom->GetLogName());
  return true;
  }
  