Don't fail if there is at least one error wrapping

[fkorotkov]

In our codebase we do wrap error to a generic internal error with code like this:

fmt.Errorf("%w: %v", ErrInternal, err)

The linter reports that the second error is not wrapped but that's fine.

[polyfloyd]

Yes, this seems like a valid usecase. Especially considering fmt.Errorf is able to only wrap one error at a time.

It might also be useful to add a check for multiple %w verbs in a single format string, but let's get this sorted out first.

[polyfloyd]

go vet does not like multiple %w verbs either, so the suggestion made by this linter is in conflict and therefore a bug

[fkorotkov]

Thank you for a speedy fix! 🎉