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

[Neal Norwitz]

More important issues:
----------------------
test_smtplib leaked [-119, 0, 0] references, sum=-119

Less important issues:
----------------------
test_asynchat leaked [0, 0, 92] references, sum=92
test_cmd_line leaked [-23, 0, 0] references, sum=-23
test_threadsignals leaked [0, -8, 0] references, sum=-8
test_urllib2_localnet leaked [3, 3, 127] references, sum=133