[Python-checkins] Python Regression Test Failures refleak (2)

[Neal Norwitz]

More important issues:
----------------------
test_io leaked [237, 237, 237] references, sum=711
test_memoryio leaked [267, 267, 267] references, sum=801

Less important issues:
----------------------
test_cmd_line leaked [0, 0, 25] references, sum=25
test_smtplib leaked [5, -88, 0] references, sum=-83
test_socketserver leaked [-83, 0, 0] references, sum=-83
test_threading leaked [48, 48, 48] references, sum=144
test_urllib2_localnet leaked [283, -283, 0] references, sum=0