Strange behavior when using AllowLeadingHyphen

[yodalee]

I'm trying to using clap-rs to build the interface of chmod. chmod accepts arguments like -rwx +0700, These are not real arguments so we cannot add them to arguments.
I try to setting like this:

.setting(AppSettings::AllowLeadingHyphen)
.arg(Arg::with_name("mode"))
.arg(Arg::with_name("debug").long("debug").short("d").help("open debug mode"))

with this will give error:

$ claptest -rwx -d`
error: Found argument '-d' which wasn't expected, or isn't valid in this context

Not sure how to set this correctly.

[kbknapp]

This is a bug. Let me look into it a little deeper and I'll post back here with some findings. Thanks for filing this!

[kbknapp]

Sorry this took so long to fix, it's fixed in #660 and will be uploaded to crates.io shortly as v2.12.0