# File lib/rhc-common.rb, line 130
  def self.get_cartridge_listing(carts, sep, libra_server, net_http, cart_type="standalone", print_result=nil)
    carts = get_cartridges_list(libra_server, net_http, cart_type, print_result) if carts.nil?
    carts.join(sep)
  end