ArgumentParser version: 1.1.2.
Swift version:

swift-driver version: 1.45.2 Apple Swift version 5.6.1 (swiftlang-5.6.0.323.66 clang-1316.0.20.12)
Target: arm64-apple-macosx12.0

Checklist

• If possible, I've reproduced the issue using the main branch of this package
• I've searched for existing GitHub issues

Steps to Reproduce

a simple argument parser that could take an array of input

@main
struct Main: ParsableCommand {
    @Argument
    var path: [String]

    func run() throws {}
}

compile this and run it with pipeline echo **/*.jpg | .build/arm64-apple-macosx/debug/main
it seems that the stdout is not pass as stdin

Expected behavior

the stdout from lhs is passed to rhs

Actual behavior

Describe or copy/paste the behavior you observe.