message: refactor: Resolve Arg::empty_values deprecation
diff: @@ -8,7 +8,7 @@ pub fn cli() -> App {
  subcommand("install")
  .about("Install a Rust binary. Default location is $HOME/.cargo/bin")
  .arg_quiet()
  - .arg(Arg::new("crate").empty_values(false).multiple(true))
  + .arg(Arg::new("crate").forbid_empty_values(true).multiple(true))
  .arg(
  opt("version", "Specify a version to install")
  .alias("vers")
  