- error_msg = "Error: invalid value '{}' for ovs_controller_ip at {}. " \
- "Use a valid IP address".format(config_dic['ovs_controller_ip'], config_file)
+ error_msg = "Error: invalid value '{}' for ovs_controller_ip at {}. Use 'localhost' word instead "\
+ "of a loopback IP address".format(config_dic['ovs_controller_ip'], config_file)