Improve validateAdditionalArguments if no arguments are allowed #1284
Description
If no arguments are allowed, the exception message could be improved. currently it states
Undeclared arguments passed to ViewHelper TYPO3Fluid\Fluid\ViewHelpers\CommentViewHelper: title. Valid arguments are:
It could be e.g.
Undeclared arguments passed to ViewHelper TYPO3Fluid\Fluid\ViewHelpers\CommentViewHelper: title. No arguments are allowed!