All sales which have been made prior to January 1, 1972, under deeds of trust to secure debts and indemnify sureties containing a provision requiring the giving of notice of sale thereunder for a specified number of days by advertisement in one or more newspapers and which were made after publishing the advertisement of sale in a newspaper published daily or in a newspaper published daily except Sunday for the number of days specified in the deed of trust, counting both the day of the first publication and the day of the last publication and intervening Sundays, whether or not such paper was published on Sunday and whether or not such sales were held on the day of the last publication (provided that, in cases when the sale was held on the day of the last publication, the publication was in a newspaper the principal daily edition of which was delivered or publicly sold before the time fixed for the sale), and whether or not the first publication or the last publication, or both, appeared on Sunday, shall be held, and the same are hereby declared, to be valid and effective in all respects, if otherwise valid and effective according to the law then in force; provided, however, that nothing herein contained shall be construed as affecting any final order or decree heretofore entered by any court of competent jurisdiction or as affecting any suit or action now pending in any court of competent jurisdiction; and provided further, that nothing in this section shall be so construed as to affect intervening vested rights.

1934, p. 257; Michie Code 1942, § 5167b; 1975, c. 284.