For other reasons i do most of the work on this lib on windows. There are several tests that failing due to problems with line breaks.

• tests\test262\test\built-ins\Function\prototype\toString\line-terminator-normalisation-LF.js
  this fails because the checkout created cr lf line as line terminator and the test expects the original lf to be preserved

We can add this line to the .gitattributes in folder tests\test262

line-terminator-normalisation-LF.js text eol=lf

but i'm not sure if this is the right way to do that

@p-bakker @gbrail what do you think?