Golf-British Open second round leaderboard

HOYLAKE, England, July 18 (Reuters) - Second round leaderboard in the 143rd British Open at Royal Liverpool Golf Club on Friday: (U.S. unless stated) R. McIlroy (Northern Ireland) -12 18 D. Johnson - 8 18 S. Garcia (Spain) - 6 18 F. Molinari (Italy) - 6 18 R. Fowler - 6 18 R. Moore - 6 18 L. Oosthuizen (South Africa) - 6 18 C. Schwartzel (South Africa) - 6 18 (Editing by Tony Jimenez)