* Spieth wins after Johnson misses four-foot birdie putt
* Johnson ties for second with Oosthuizen
* McIlroy signs off with 66 (Adds detail, quotes)
By Mark Lamport-Stokes
UNIVERSITY PLACE, Washington, June 21 (Reuters) - Masters champion Jordan Spieth added another chapter to golf's record books with a nerve-jangling, one-shot victory at the U.S. Open on Sunday after Dustin Johnson blew his chance to force a playoff by three-putting the last.
American young gun Spieth sank a curling 28-footer to birdie the 16th and forge three ahead, then shrugged off a double-bogey at the 17th before becoming just the sixth player to slip into a green jacket and hoist the U.