cling 0.1.0

A lightweight framework that simplifies building complex command-line applications with [clap.rs](https://clap.rs)
Documentation 
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use rustc_version::{version_meta, Channel};

fn main() {
    // Set cfg flags depending on release channel. We use "unstable" cfg to gate
    // some of the unstable features in the compiler.
    if version_meta().unwrap().channel == Channel::Nightly {
        println!("cargo:rustc-cfg=unstable");
    }
}