Docs: add info about "-vv..."

[voku]

This change is 

[kubawerlos]

Content is looking good, only checks to fix.

[julienfalque]

I'm wondering if the current changes are really helpful. I mean those options are standard Symfony options and quite common amongst CLI tools in general. Also one can already find this information with php-cs-fixer fix --help.

Maybe something more helpful would be to actually add details about what each verbosity level shows/hides?

[voku]

Just because these are default options, does not mean that the docs should not contain it.

And yes, some extra information are maybe helpful. I think this is the relevant part?: https://github.com/FriendsOfPHP/PHP-CS-Fixer/blob/master/src/Console/Output/ErrorOutput.php#L55

[keradus]

please, check the contributing guidelines.
as you can see, all CIs are failing.

[voku]

@keradus CIs fixed. I did not change any source code, so I thought that the failing tests are not related to these changes.

[SpacePossum]

👍
maybe best to target lowest stable so we've less differences over the branches?

[julienfalque]

I still think it would be nice to not only list the different options and their verbosity level but also say what each level of verbosity will output, i.e. if verbosity is at least [level], it will show [info].

[keradus]

I agree with you, @julienfalque

unfortunately, nobody is working on it and I believe it's better to merge small improvement than not merge any improvement (while awaiting for big improvement to be proposed).

[keradus]

Thank you @voku.

[keradus]

merged into LTS