module Rails::Command::Behavior

def lookup!

This will try to load any command in the load path to show in help.
def lookup!
  $LOAD_PATH.each do |base|
    Dir[File.join(base, *file_lookup_paths)].each do |path|
      path = path.delete_prefix("#{base}/")
      require path
    rescue Exception
      # No problem
    end
  end
end