message: Resolve a let_and_return lint warning
diff: @@ -155,7 +155,7 @@ fn execute_subcommand(config: &mut Config, args: &ArgMatches) -> CliResult {
  }
  fn cli() -> App {
  - let app = App::new("cargo")
  + App::new("cargo")
  .settings(&[
  AppSettings::UnifiedHelpMessage,
  AppSettings::DeriveDisplayOrder,
  @@ -223,6 +223,5 @@ See 'cargo help <command>' for more information on a specific command.\n",
  .number_of_values(1)
  .global(true),
  )
  - .subcommands(commands::builtin());
  - app
  + .subcommands(commands::builtin())
  }
  