func Setsys(key, value string) error {
	if !_IS_ROOT {
		return ErrNoRoot
	}
	return _Set(_SETTINGS.global, key, value)
}
func Setsys(key, value string) error {
	if !_IS_ROOT {
		return ErrNoRoot
	}
	return _Set(_SETTINGS.global, key, value)
}
func Setsys ( key , value string ) error { if ! _IS_ROOT { return ErrNoRoot } return _Set ( _SETTINGS . global , key , value ) }
// == Set system-wide variables
// Setsys sets the value of the environment variable named by the key that
// affects the system as a whole. You must be Root.
// It returns an error, if any.
== Set system - wide variables Setsys sets the value of the environment variable named by the key that affects the system as a whole . You must be Root . It returns an error if any .