NREL/EnergyPlus — pull request #4582 by Myoldmopar (2014-11-06 18:40:19+00:00)
Title: Trying to fix the library callback test on non-linux systems

So on Ubuntu this worked perfect. CI showed Windows and Mac having trouble. I built on Windows and found that if I collapse the arguments to ```execute_process(COMMAND ...)``` it works perfectly. On Linux the collapsed version fails. Bleck. Don't have a Mac to test on, but this should clean up Windows at least, and maybe Mac too??