Obama would not have changed the race to African since he would love to maximize the impact of having his father called a Negro or colored to emphasize it and once again play the race card.
The only thing that matters is was he born in Kenya, or Hawaii?
No, but it's possible that the politically correct state of Hawaii issued an order changing the usage from Negro to African American. Since his father was NOT an African American, it would have been logical to change it to African. Obama would not need to have had anything to do with it.
Again, just speculation. But it's disturbing that birth records can be repeatedly changed like this at the order of a court or the whims of politicians.