By Herbert Lash, Ankika Biswas and Bansari Mayur Kamdar (Reuters) -Wall Street rallied for a second straight day to end higher on Tuesday after softer U.S. economic data and a smaller-than-expected interest rate hike by the Australian central bank stirred hope that the Federal Reserve might temper its aggressive raising of rates. While labor demand remains fairly strong, U.S. job openings fell by the most in nearly 2-1/2 years in August in a sign the Fed’s mission to tame inflation by tightening policy was working to slow the economy. Earlier, the Reserve Bank of Australia surprised markets wi…