SYDNEY (Reuters) - Asian shares pared gains on Monday as Chinese stocks swung into negative territory, dragged lower by the escalating Sino-U.S. trade war, though Beijing’s efforts to stop sharp declines in the yuan helped support the currency. Men walk past an electronic board showing market indices outside a brokerage in Tokyo, Japan, March 2, 2016. REUTERS/Thomas Peter Spreadbetters pointed to a tentative start for European shares with futures for London’s FTSE FFIc1 up 0.07 percent.