Array-definition trimming bracket-spaces and last-comma

[Pictor13]

Hi,

I've noticed the formatting with PSR2 removes the eventual spaces between the brackets and the values, inside array definitions.
We usually type them as [ 1, 2, 3 ] and [ 1, 2, 3, ]; is there a way to skip that bracket-space and last-comma checks?

[Pictor13]

Probably a duplicate of #17 , that looks like unsolved since years :(