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

[Neal Norwitz]

More important issues:
----------------------
test_threading leaked [0, 0, 7] references, sum=7

Less important issues:
----------------------
test_asynchat leaked [0, 0, 113] references, sum=113
test_cmd_line leaked [23, 0, 0] references, sum=23
test_smtplib leaked [-98, 5, 86] references, sum=-7
test_threadsignals leaked [0, -8, 0] references, sum=-8
test_urllib2_localnet leaked [3, 182, -176] references, sum=9