WSL: build-npm is broken

[pixeleet]

/bash/r -> @raulcorreia7 update error desc pls

[pixeleet]

@raulcorreia7 https://just.systems/man/en/chapter_31.html
This could e a good solution to the differences in windows impl.

[raulcorreia7]

@pixeleet i'll investigate and try to come up with a fix