Hi @miksir , thanks for the PR, the changes look good to me, but I have some concerns regarding naming.
I don't like no_space, to be honest, because actually it's not about space, but about having param and value passed as a single argument (e.g. if in a value you have spaces, it will still be only one argument)

Regarding repeat_arg: at the moment for the -p (or --flag, or ---arg=) i use config called param. I think for consistency it would be better to keep it.
OR: i googled for proper naming: https://stackoverflow.com/questions/36495669/difference-between-terms-option-argument-and-parameter So in this case param was a bad name from me. The proper one would be "option".
So i think we should either use repeat param or repeat option.

What do you think?

I am really dont care about naming :) Just need time for search and replace :) Will try to rename tomorrow.

So any suggestions how to call param_space? :) param_value_split? :)

repeat_arg to repeat_param? or repeat_param_with_each_value?

Renaming param to option require renaming of param field, and it's too complicated

repeat_param would be ok, as for me
and may be single_arg_param ?

Or may be be same_arg_param

Renamed

There are 2 web tests failing, would you mind having a look? Or should I?

Oh, I will check.

Probably fired because I changed visibility of some fields when they are unused (they was disabled before)