Removing code smell with $$args

[ThomasLandauer]

No description provided.

[dunglas]

The error message is less descriptive than the previous one. I don't think this change is worth it.

[ThomasLandauer]

The idea was to get rid of $$arg - which is really ugly.
And telling the users all three "problem areas" at once, can also be seen as advantage over telling them one by one.