Don't hide --no-config flag

[triallax]

The flag is also useful for determining whether bugs are triggered by a certain configuration setting (or some combination thereof).

[sharkdp]

Thanks. I pushed an update that hides some of the options when using short -h, but still shows them when using --help. I use this for a couple of other programs, and I think this approach has served us well so far. I like -h as a short reminder of the most commonly used options.