[gnulib-tool-py] --verbose parameter and its value

[Dmitriy Selyutin]

Hello everyone.

As you know there is --verbose parameter, which is supposed to be integer. As I understand this option can be repeated:

      --verbose | --verbos | --verbo | --verb )

        verbose=`expr $verbose + 1`

I've found a couple of commands where gnulib-tool tests if verbose argument is greater than: 1) 0; 2) 1; 3) -1.

Does that mean that the maximal value of verbosity is 1 and the minimal is -1? What does mean testing if verbosity is -1? Does that means that 0 level of verbosity still prints to stdout messages, and you have to add parameter --quiet at least once to disable messages? Thanks!