Fixed double hyphens that are rendered to literal en-dashes in the documenation.

Doc/howto/logging-cookbook.rst

@@ -1088,7 +1088,7 @@ $-formatting to be used to build the actual "message" part which appears in the
 formatted log output in place of "%(message)s" or "{message}" or "$message".
 It's a little unwieldy to use the class names whenever you want to log
 something, but it's quite palatable if you use an alias such as __ (double
-underscore – not to be confused with _, the single underscore used as a
+underscore --- not to be confused with _, the single underscore used as a
 synonym/alias for :func:`gettext.gettext` or its brethren).
 
 The above classes are not included in Python, though they're easy enough to
@@ -1209,7 +1209,7 @@ do simply by adding new packages or modules and doing ::
 at module level). It's probably one too many things to think about. Developers
 could also add the filter to a :class:`~logging.NullHandler` attached to their
 top-level logger, but this would not be invoked if an application developer
-attached a handler to a lower-level library logger – so output from that
+attached a handler to a lower-level library logger --- so output from that
 handler would not reflect the intentions of the library developer.
 
 In Python 3.2 and later, :class:`~logging.LogRecord` creation is done through a

Doc/library/asyncio.rst

-:mod:`asyncio` -- Asynchronous I/O, event loop, coroutines and tasks
-====================================================================
+:mod:`asyncio` --- Asynchronous I/O, event loop, coroutines and tasks
+=====================================================================
 
 .. module:: asyncio
    :synopsis: Asynchronous I/O, event loop, coroutines and tasks.

Doc/library/importlib.rst

-:mod:`importlib` -- The implementation of :keyword:`import`
-===========================================================
+:mod:`importlib` --- The implementation of :keyword:`import`
+============================================================
 
 .. module:: importlib
    :synopsis: The implementation of the import machinery.

Doc/library/logging.rst

@@ -561,7 +561,7 @@ The useful mapping keys in a :class:`LogRecord` are given in the section on
          handled by a strptime format string (``'%Y-%m-%d %H:%M:%S'``), and the
          part after the comma is a millisecond value. Because strptime does not
          have a format placeholder for milliseconds, the millisecond value is
-         appended using another format string, ``'%s,%03d'`` – and both of these
+         appended using another format string, ``'%s,%03d'`` --- and both of these
          format strings have been hardcoded into this method. With the change,
          these strings are defined as class-level attributes which can be
          overridden at the instance level when desired. The names of the

Doc/library/msvcrt.rst

-:mod:`msvcrt` -- Useful routines from the MS VC++ runtime
-=========================================================
+:mod:`msvcrt` --- Useful routines from the MS VC++ runtime
+==========================================================
 
 .. module:: msvcrt
    :platform: Windows

Doc/library/selectors.rst

-:mod:`selectors` -- High-level I/O multiplexing
-===============================================
+:mod:`selectors` --- High-level I/O multiplexing
+================================================
 
 .. module:: selectors
    :synopsis: High-level I/O multiplexing.

Doc/library/winreg.rst

-:mod:`winreg` -- Windows registry access
+:mod:`winreg` --- Windows registry access
 =========================================
 
 .. module:: winreg

Doc/tutorial/stdlib2.rst

 .. _tut-brieftourtwo:
 
 *********************************************
-Brief Tour of the Standard Library -- Part II
-*********************************************
+Brief Tour of the Standard Library --- Part II
+**********************************************
 
 This second tour covers more advanced modules that support professional
 programming needs.  These modules rarely occur in small scripts.