ensure user locale does not make DefaultSummaryPrinterTest failling

[rmannibucau]

I'm in french locale by default so decimal separator is "," and not "." so DefaultSummaryPrinterTest fails because 0.00 != 0,00 whereas the test actually functionally worked.

this pr enforces the locale for the test to ensure the assert will pass.

[coveralls]

Coverage remained the same at 85.956% when pulling dac615e on rmannibucau:rmannibucau/fix-DefaultSummaryPrinterTest-for-not-en-locales into 1796209 on cucumber:master.

[mpkorstanje]

Ah thanks! This doesn't fix the root cause. I'll have a stab at it, there are some other complexities surrounding this.

[rmannibucau]

@mpkorstanje root cause is there

cucumber-jvm/core/src/main/java/io/cucumber/core/plugin/DefaultSummaryPrinter.java

Line 24 in afa3a99

this(System.out, Locale.getDefault());

;)