message: updata the params in exec contract
  according to chain_plugin.hpp
  modification the params
  cmd_line --> args
  bincmd_line --> binargs
diff: @@ -258,7 +258,7 @@ int send_command (const vector<string> &cmd_line)
  Name code = cmd_line[1];
  Name action = cmd_line[2];
  auto& json = cmd_line[3];
  - auto arg= fc::mutable_variant_object( "code", code )("action",action)("cmd_line", fc::json::from_string(json));
  + auto arg= fc::mutable_variant_object( "code", code )("action",action)("args", fc::json::from_string(json));
  auto result = call( json_to_bin_func, arg);
  @@ -268,7 +268,7 @@ int send_command (const vector<string> &cmd_line)
  msg.code = code;
  msg.type = action;
  msg.authorization = fc::json::from_string( cmd_line[5] ).as<vector<types::AccountPermission>>();
  - msg.data = result.get_object()["bincmd_line"].as<Bytes>();
  + msg.data = result.get_object()["binargs"].as<Bytes>();
  trx.scope = fc::json::from_string( cmd_line[4] ).as<vector<Name>>();
  auto trx_result = push_transaction( trx );
  