This statement is a lie.
1972 Platform Abortion-- "We support an end to all subsidies for childbearing built into our present laws, including all welfare plans and the provision of tax-supported services for children. We further support the repeal of all laws restricting voluntary birth control or voluntary termination of pregnancies during their first hundred days."
1974 Platform Abortion--"We support an end to all subsidies for childbearing built into our present laws, including all welfare plans and the provision of tax-supported services for children. We further support the repeal of all laws restricting voluntary birth control or the right of the woman to make a personal moral choice regarding the termination of pregnancy."
Notice that the 1974 Platform has zero limits or restrictions, just like today.
2012 Platform Abortion--Recognizing that abortion is a sensitive issue and that people can hold good-faith views on all sides, we believe that government should be kept out of the matter, leaving the question to each person for their conscientious consideration.