Arg::last should allow preceding argument to be Arg::multiple(true)

[nagisa]

In current master a Arg::last(true) is available which makes a positional argument of the form:

[-- <ARG>...]

possible. This argument is required to have the leading dash-dash before it can be parsed. This means that essentially any other positional argument should be possible before the dash-dash, including another Arg::multiple(true) argument, however currently clap panics:

thread 'main' panicked at 'When using a positional argument with .multiple(true) that is *not the last* positional argument, the last positional argument (i.e the one with the highest index) *must* have .required(true) or .last(true) set.', /home/nagisa/.cargo/git/checkouts/clap-rs-507f2c09c9b0886e/814b126/src/app/parser.rs:459

for code like this:

            .arg(Arg::with_name("CORPUS").multiple(true))
            .arg(Arg::with_name("ARGS").multiple(true).last(true))

[kbknapp]

good catch! I'll have it fixed momentarily!

[kbknapp]

This is fixed in 2.21.1 on crates.io