Does a failure to comply with a mandatory directory requirement render an election void?

7 In Rideout v. City of Los Angeles, supra, 185 Cal. 426, 197 P. 74, this court stated, "[A] distinction has been developed between mandatory and directory provisions in election laws; a violation of a mandatory provision vitiates the election, whereas a departure from a directory provision does not render the election void if there is a substantial observance of the law and no showing that the result of the election has been changed or the rights of the voters injuriously affected by the deviation. [Citations.]" (185 Cal. at p. 430, 197 P. 74, italics added.)