[6.x] Updates file unit tests to be Windows compatible (#24281)#24305

Merged

tylersmalley merged 1 commit intoelastic:6.xfrom tylersmalley:backport/6.x/pr-24281

Oct 20, 2018

+7-7

Commits on Oct 19, 2018

Updates file unit tests to be Windows compatible (elastic#24281 )

tylersmalley
authored and
Tyler Smalley
committed