Option values cannot start with dash

[rwhit]

I have an option to provide a key to a utility. The key value in one instance happens to start with "-". So running:

utitility.exe --key -gobbledygook123

produces an error message:

ERROR(S):
Option 'g' is unknown.
Required option 'key' is missing.

[rmunn]

This has been fixed by a PR I made, which has been merged into develop and will be in release 2.9.0. Unfortunately that release was delayed by an expired NuGet API key, but #733 fixes that issue so the release will hopefully be soon.

[rmunn]

In the meantime, you can work around this issue by telling users to use the = syntax, because utility.exe --key=-gobbledygook123 will do what you expect (the value of key will be -gobbledygook123 including the leading hyphen). Once 2.9.0 is released, then you'll be able to do:

var parser = new Parser(with => {
    with.ParserMode = ParserMode.GetoptParserV2;
});

And then --key -gobbledygook123 will do what you expect.

[rmunn]

This is essentially a duplicate of #601, and is fixed by #684 and #690, which should be in the 2.9.0 release once it finally comes out.