Tests cases are slightly misleading ?

[mthh]

In the documentation and in the blocks examples the size property of the contour generator created by d3.contours() is set such as [n, m] where n*m is equal to length of the input array used with the contour object.
In the test file the input array counts 110 values but the size used is [10, 10].

Is it voluntary ? Or I am missing something ?
Even if it won't change anything to the result, maybe it should be fixed (for clarity) either by removing the last line of the input array or either by using [10, 11] as input value for size ?

[mbostock]

Think it was just a mistake?