output indirection (no terminal) not detected correctly on windows

[fradav]

On windows we got this, when output is redirected :

We should have instead :

> Model Choice <
///////////////////////////////////////// read headers
read headers done.
///////////////////////////////////////// read reftable
read 500/12000
read 1000/12000
read 1500/12000
read 2000/12000
read 2500/12000
read 3000/12000
read 3500/12000
read 4000/12000
read 4500/12000
read 5000/12000
read 5500/12000
read 6000/12000
read 6500/12000
read 7000/12000
read 7500/12000
read 8000/12000
read 8500/12000
read 9000/12000
read 9500/12000
read 10000/12000
read 10500/12000
read 11000/12000
read 11500/12000
read 12000/12000

read reftable done.
///////////////////////////////////////// First forest (training on ABC output)
Growing trees ..
computed_0 1/50
computed_0 2/50
computed_0 3/50
computed_0 4/50
computed_0 5/50
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computed_0 50/50

Computing prediction error ..
///////////////////////////////////////// Second forest (training on error)
Growing trees ..
computed_1 1/50
computed_1 2/50
computed_1 3/50
computed_1 4/50
computed_1 5/50
computed_1 6/50
computed_1 7/50
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computed_1 50/50

Computing prediction error ..
  votes model1  votes model2  votes model3  votes model4  votes model5  votes model6 selected model  post proba
             0             1            48             1             0             0              3       0.838

[fradav]

Fixed in 0822838
Release : https://github.com/diyabc/abcranger/releases/tag/v1.2.64