Some good news coming out of Berkshire Hathaway today, but it has nothing to do with investments. CNN reports that the investment firm’s leader, Warren Buffet, has completed his treatment for prostate cancer.Buffett, one of the richest men in the world, is legendary in the investing world for his lucrative accomplishments. He had announced in April that he had an early stage of prostate cancer, but made clear that it was not life threatening.Buffett has completed 44 days of radiation and will recover from the side effects over the coming weeks.