Fix bug in TestResult.addSubTest()
Use a subtest in test_ssl.test_echo
In search of TLS 1.1 bug: add debugging output in verbose mode
Issue #17540: Added style to Formatter configuration by dict.
Closes #17540: Merged fix from 3.3.
#17564: skip test_bad_address unless the tests are run with -unetwork/-uall.
#17564: merge with 3.3.
#17526: fix an IndexError raised while passing code without filename to inspect.findsource().  Initial patch by Tyler Doyle.
#17526: merge with 3.3.
#17539: fix MagicMock example.  Patch by Berker Peksag.
#17539: merge with 3.3.
Updated logging cookbook with additional example for output using str.format().
Merged documentation update from 3.3.