Hello, i have just upgraded from 1.1 to latest version and i receive this exception:
Long option must be null or an alphanumeric string, found 'c'

We have this option: [null, 'c', GetOpt::OPTIONAL_ARGUMENT, 'Set working copy.'],

I have found out the issue is in Option::setLong() where this regex wont pass: /^[a-zA-Z0-9][a-zA-Z0-9_-]{1,}$/ - https://regex101.com/r/v3F9pu/1

It worked fine with version 1.1, but now it does not.

If i change the regex like this, it works: /^[a-zA-Z0-9][a-zA-Z0-9_-]*$/ https://regex101.com/r/qKbrCc/2

The problem is it expects at least 2 charactes.