message: Remove duplicated code in arg_package_spec.
diff: @@ -35,10 +35,8 @@ pub trait AppExt: Sized {
  all: &'static str,
  exclude: &'static str,
  ) -> Self {
  - self.arg_package_spec_simple(package)
  + self.arg_package_spec_no_all(package, all, exclude)
  ._arg(opt("all", "Alias for --workspace (deprecated)"))
  - ._arg(opt("workspace", all))
  - ._arg(multi_opt("exclude", "SPEC", exclude))
  }
  /// Variant of arg_package_spec that does not include the `--all` flag
  