Do not show "available paths" help in ./x.py clean

src/bootstrap/flags.rs

@@ -253,17 +253,18 @@ Arguments:
  }
  });
 
- // All subcommands can have an optional "Available paths" section
+ // All subcommands except `clean` can have an optional "Available paths" section
  if matches.opt_present("verbose") {
  let config = Config::parse(&["build".to_string()]);
  let mut build = Build::new(config);
  metadata::build(&mut build);
 
  let maybe_rules_help = Builder::get_help(&build, subcommand.as_str());
  extra_help.push_str(maybe_rules_help.unwrap_or_default().as_str());
- } else {
- extra_help.push_str(format!("Run `./x.py {} -h -v` to see a list of available paths.",
- subcommand).as_str());
+ } else if subcommand.as_str() != "clean" {
+ extra_help.push_str(format!(
+ "Run `./x.py {} -h -v` to see a list of available paths.",
+ subcommand).as_str());
  }
 
  // User passed in -h/--help?
@@ -293,7 +294,7 @@ Arguments:
  }
  "clean" => {
  if paths.len() > 0 {
- println!("\nclean takes no arguments\n");
+ println!("\nclean does not take a path argument\n");
  usage(1, &opts, &subcommand_help, &extra_help);
  }