Bug in parsing array of boolean

[maartenflippo]

Consider the following flatzinc statement:

array [1..3] of var bool: xs = [x1, x2, x3];

The crate fails to parse, seemingly because of the whitespace in the array literal after each comma. I.e. the following does work:

array [1..3] of var bool: xs = [x1,x2,x3];

We are running version 0.3.20 of the crate. I am happy to submit a PR fixing this if you would be helped by that.

[sthiele]

Thank you for reporting the issue. A PR would be very welcome.