4 bug fixes:
- Fix independent testing of test_gem_package_tar_output. Ruby Bug #4686 by Shota Fukumori
- Fix test failures for systems with separate ruby versions. Ruby Bug #3808 by Jeremy Evans
- Fixed some bad calls left behind after rolling out some refactorings.
- Syck has a parse error on (good) times output from Psych. (dazuma, et al)