message: eliminate 'cleos' help text mislead.
diff: @@ -2000,13 +2000,13 @@ int main( int argc, char** argv ) {
  push->require_subcommand();
  // push action
  - string contract;
  + string contract_account;
  string action;
  string data;
  vector<string> permissions;
  auto actionsSubcommand = push->add_subcommand("action", localized("Push a transaction with a single action"));
  actionsSubcommand->fallthrough(false);
  - actionsSubcommand->add_option("contract", contract,
  + actionsSubcommand->add_option("account", contract_account,
  localized("The account providing the contract to execute"), true)->required();
  actionsSubcommand->add_option("action", action,
  localized("A JSON string or filename defining the action to execute on the contract"), true)->required();
  @@ -2020,14 +2020,14 @@ int main( int argc, char** argv ) {
  } EOS_RETHROW_EXCEPTIONS(action_type_exception, "Fail to parse action JSON data='${data}'", ("data",data))
  auto arg= fc::mutable_variant_object
  - ("code", contract)
  + ("code", contract_account)
  ("action", action)
  ("args", action_args_var);
  auto result = call(json_to_bin_func, arg);
  auto accountPermissions = get_account_permissions(tx_permission);
  - send_actions({chain::action{accountPermissions, contract, action, result.get_object()["binargs"].as<bytes>()}});
  + send_actions({chain::action{accountPermissions, contract_account, action, result.get_object()["binargs"].as<bytes>()}});
  });
  // push transaction
  