WASHINGTON — President Trump ended two days of guessing Thursday by saying that Iran had gifted him 10 “big boats” of oil in a show of goodwill. “They said, ‘To show you the fact that we’re real and solid and we’re there, we’re going to let you have eight boats of oil — eight boats, eight big boats of oil.’ … and I didn’t think much about it,” Trump said at a cabinet meeting. “And then I watched the news, and they said … ‘There are eight boats that are going right up the middle of the Hormuz Strait, eight...