Fix scalarbar trouble when min, max, or max-min == 0.

Do not call printf with "%.2147483647g".

Change-Id: I1f1301348c19760e579b7d2158222eda4b6fb4c8
Merge topic '14095_scalar_bar_slowdown' into next

34e8ac8 Fix scalarbar trouble when min, max, or max-min == 0.