Let the test suite pass when MSYS2's symlink support is turned on#5975

dscho wants to merge 12 commits intogit-for-windows:maingit-for-windows/git:mainfrom

dscho:pass-the-test-suite-with-symlinks-on-windowsdscho/git:pass-the-test-suite-with-symlinks-on-windowsCopy head branch name to clipboard