undocumented value PyBUF_SHADOW, and strangely-looking code in
PyMemoryView_GetContiguous.
-- Issue #6081: Add str.format_map, similar to str.format(**mapping).
+- Issue #6081: Add str.format_map(), similar to ``str.format(**mapping)``.
- If FileIO.__init__ fails, close the file descriptor.
there are non-base64 alphabet characters in the input.
- Issue #10386: Add __all__ to token module; this simplifies importing in
- tokenize module and prevents leaking of private names through import *.
+ tokenize module and prevents leaking of private names through ``import *``.
- Issue #4471: Properly shutdown socket in IMAP.shutdown(). Patch by Lorenzo
M. Catucci.