PHOTO: Oklahoma's Greg Pruitt By TOM SHANAHAN Piece by piece, year by year, holes are punched in revisionist history that was created to hide Alabama coach Bear Bryant's silent voice on the issue of his times, segregation. Closer examination of Bryant's record allows a judgment as to whether the preeminent coach of the South was on the right side of history. He was not. After all, leaders in sports have long outpaced society. Many Bryant myths are based…