Get specs to pass on windows

- live_stream was broken on windows
- A spec related to LC_ALL was broken. Looks like the behavior changed in https://github.com/opscode/mixlib-shellout/commit/767ea4fc19cb29a55a81a55d1a13643ae3108f4c and the Windows spec did not get updated to reflect that. @lamont-granquist can you please take a close look at https://github.com/opscode/mixlib-shellout/commit/11322722b3a7211dfeae5d71887307d3ffae91b4 to make sure that was the intention

cc @opscode/client-engineers