Please ignore the parent post. It's completely wrong.
They are lying about me saying there was more than one argument.
They are lying when he said it's not an argument list. I got the name from perlsub. I called it the "expression that follows the call" before that. The name isn't even relevant!
They are lying about my claim is indefensible. You can run the code yourself to ascertain that the expression that follows the call (which perlsub calls the argument list) isn't always evaluated from left to right.