Mix.CmdTest aware of Windows newline behavior
Mix.ShellTest aware of Windows newline behavior
Mix.CmdTest, Mix.ShellTest and Windows newlines (take 2)
Defined os_newline in test_helper for Mix
Mix.CmdTest, Mix.ShellTest and Windows newlines (take 2)
Merge pull request #2352 from chyndman/mix-shell-tests-win

Mix tests aware of Windows' esoteric newline behavior