fix test_platform (os was not imported)

diff --git a/Lib/test/test_platform.py b/Lib/test/test_platform.py
index f337fba3ed91594c0cb29e637a12fae77dcbd34c..6275a6a7a30ae7174a81797f5ee9b61073c8c14e 100644 (file)
--- a/Lib/test/test_platform.py
+++ b/Lib/test/test_platform.py
@@ -1,4 +1,5 @@
 import sys
+import os
 import unittest
 import platform