What does 1 Kings 22:8 mean?

Ahab said, 'There's one more guy, Micaiah son of Imlah, but I hate him. He never says anything good about me—only bad.' Jehoshaphat replied, 'Don't say that.' 1 Kings 22:8 - Modern Text Bible

(Ahab admits he avoids the real prophet because he doesn't like what he says. Jehoshaphat pushes for honesty.)