[Python-checkins] Python Regression Test Failures refleak (1)

[Neal Norwitz]

More important issues:
----------------------
test_itertools leaked [0, 32, 0] references, sum=32

Less important issues:
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test_file2k leaked [-83, 0, 0] references, sum=-83
test_smtplib leaked [-31, 188, -276] references, sum=-119
test_sys leaked [21, 0, -21] references, sum=0
test_threading leaked [48, 48, 48] references, sum=144
test_threadsignals leaked [0, 0, -8] references, sum=-8
test_urllib2_localnet leaked [-284, 0, 284] references, sum=0