No election shall be void in consequence solely of any delay in holding the election at the time appointed, or in taking the poll, or in the return of the writ, or in consequence of any impediment of a merely formal nature; and the Governor may adopt such measures as may be necessary for removing any obstacle of a merely formal nature by which the due course of any election might be impeded;

Provided that the validity of the election and the measures so taken shall be forthwith declared by the Governor by proclamation.