For the goalie who had the most shutouts in 2010, what's his catching hand?
the most shutouts refers to max(SHO); shootCatch = 'L' refers to lefthand; shootCatch = 'R' refers to righthand; shootCatch = 'null' or 'empty' means this player is good at both left and right hand
SELECT T1.shootCatch FROM Master AS T1 INNER JOIN Goalies AS T2 ON T1.playerID = T2.playerID WHERE T2.year = 2010 GROUP BY T2.playerID ORDER BY SUM(T2.SHO) DESC LIMIT 1