EMERGING MARKETS-Brazil real seesaws ahead of Carnaval; U.S. job data weighs

By Bruno Federowski SAO PAULO, Feb 5 (Reuters) - The Brazilian real seesawed on Friday as traders closed positions ahead of the local Carnaval holiday and digested a batch of mixed U.S. job data. The real turned positive for the year against the U.S. dollar this week, boosted by a recovery in global sentiment and bets that the U.S. Federal Reserve could avoid raising rates until 2017. Traders also cited talk of action by Brazilian public banks to stymie currency weakness. Investo