return errors.New(e)
				}
			}
			return nil
		},
	}
	cmd.PersistentFlags().BoolVar(&skipControlPlane, "skip-controlplane", false, "skip checking the control plane")
	cmd.PersistentFlags().Var(&outputThreshold, "output-threshold",
		fmt.Sprintf("The severity level of precheck at which to display messages. Valid values: %v", diag.GetAllLevelStrings()))

}

func IstiodAddr(ns, revision string) string {
	// TODO make port configurable
	return fmt.Sprintf("%s:%d", IstiodHost(ns, revision), 15012)
}

// Returns a map with each k,v entry on a new line
func mapToString(m map[string]string) string {
	lines := []string{}
	for k, v := range m {
		lines = append(lines, fmt.Sprintf("%s=%s", k, shellescape.Quote(v)))
	}
	sort.Strings(lines)

	if err != nil {
		t.Fatal(err)
	}
	lines := strings.Split(got, "\n")
	for i, l := range lines {
		if strings.HasSuffix(l, " ") {
			t.Errorf("Line %v has a trailing space: [%v]. Context: %v", i, l, strings.Join(lines[i-25:i+25], "\n"))
		}
	}
}