Fix recently introduced test cases.
For datetime, gentoo didn't seem to mind the %e format for strftime. So, we just excercise those instead making sure that we don't crash.
For test_os, two cases were incorrect.
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r68621 | kristjan.jonsson | 2009-01-15 16:40:03 -0600 (Thu, 15 Jan 2009) | 1 line
Fix two test cases in test_os. ftruncate raises IOError unlike all the others which raise OSError. And close() on some platforms doesn't complain when given an invalid file descriptor.
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r68622 | kristjan.jonsson | 2009-01-15 16:46:26 -0600 (Thu, 15 Jan 2009) | 1 line
Make all the invalid fd tests for os subject to the function being available.
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r68649 | benjamin.peterson | 2009-01-16 22:39:05 -0600 (Fri, 16 Jan 2009) | 1 line
trying to find some fpathconf() settings that all unixs support...
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