An L3Harris office building. JHVEPhoto As a dividend growth investor, one of the most important attributes to me is a track record of vigorous dividend growth. Of course, a pattern of rewarding shareholders in the past doesn't always perfectly correlate to a future of rewarding shareholders when the fundamentals deteriorate (Walgreens Boots Alliance's (WBA) dividend cut, anybody?). But in this rapidly changing world, I have found the dividend growth strategy to be a winner for me. That's because it keeps ...