Prefer splat operator over func_get_args()
Prefer splat operator over func_get_args()

As ParaTest now only supports PHP >= 7.0, can safely use the splat
operator instead of func_get_args(). The feature was introduced in PHP
5.6.

See: https://secure.php.net/manual/en/migration56.new-features.php#migration56.new-features.splat

brianium/paratest,brianium/paratest