test_ftplib.py: change client default timeout from 10 to 2. Hanging for 10 seconds is way too much when we expect a server response which never comes in.

Also, reduce code duplication in LargeMmapTests.

Original patch by Steffen Daode Nurpmeso.

Also, reduce code duplication in LargeMmapTests.

Original patch by Steffen Daode Nurpmeso.

Also, reduce code duplication in LargeMmapTests.

Original patch by Steffen Daode Nurpmeso.

The name must be encodable to ASCII because dynamic module must have a function
called "PyInit_NAME", they are written in C, and the C language doesn't accept
non-ASCII identifiers.

 * Set the default value of all_threads arguments to True
 * Py_FatalError() dumps all threads, instead of only the current thread

Dump only the current thread is not reliable. In some cases, Python is unable
to retrieve the state of the current thread and so is unable to dump the
traceback. faulthandler keeps a reference to the interpreter and so is always
able to dump the traceback of all threads.

Patch by Pierre Carrier.

parameter to control parameters of the secure channel.  Patch by Sijin
Joseph.

Noticed while researching a buildbot failure due to a patch for issue #10684.

dNSName entry, ssl.match_hostname() should use the subject's commonName.
Patch by Nicolas Bareil.

dNSName entry, ssl.match_hostname() should use the subject's commonName.
Patch by Nicolas Bareil.

Issue #10775: assertRaises, assertRaisesRegex, assertWarns, and assertWarnsRegex now accept a keyword argument 'msg' when used as context managers.  Initial patch by Winston Ewert.

Fix for issue 10684: Folders get deleted when trying to change case with shutil.move (case insensitive file systems only)