Magento 2.0.10 – Fix Syntax Error When Installing Security Fix

chown -R www-data:www-data /var/www/magento2/ 
chmod 777 -R var
chmod 777 -R generated
chmod 777 -R app/etc
rm -rf var/cache/* var/page_cache/* var/generation/*

and

php bin/magento setup:di:compile;

Note: wrong version of the php is a main issue

Try to run this command in command line:

php -v

It is possible that your cli php is different from the server's php (cli php version is older than php version used by your server). If this is so, try to change path to the php used in cli.

Your problem occurs in a line of arguments of this method:

protected function createObject($type, $args)
{
    return new $type(...array_values($args));
}

becouse your cli php can not understand (parse) the ... symbols (Argument Unpacking) that is available for the php versions >= 5.6 .

PS: Here you can find an answer for the question "How to check php version on windows command line"