By Lenn Thompson, Editor and Publisher I've said it a million times and I'll say it again — there is little doubt that sauvignon blanc is the white-wine future of Long Island. And, year after year, a unique regional is emerging — one with bright citrus fruit, accented by herbs that are less overwhelming than wines from New Zealand, and minerality that is less intense perhaps than Sancerre. And, unlike sauvignon from the left coast, the wines are focused and well balanced by refreshing acidity. These are generalizations, of course, but it's an emerging style and I'm just trying to…