Use ASCII quotes and fix markup.

Doc/howto/logging-cookbook.rst

@@ -1126,7 +1126,7 @@ snippet, which shows zlib-based compression of the log file::
     rh.rotator = rotator
     rh.namer = namer
 
-These are not “true” .gz files, as they are bare compressed data, with no
-“container” such as you’d find in an actual gzip file. This snippet is just
+These are not "true" .gz files, as they are bare compressed data, with no
+"container" such as you’d find in an actual gzip file. This snippet is just
 for illustration purposes.
 

Doc/library/logging.handlers.rst

@@ -209,7 +209,7 @@ need to override.
 
       The default implementation calls the 'namer' attribute of the handler,
       if it's callable, passing the default name to it. If the attribute isn't
-      callable (the default is `None`), the name is returned unchanged.
+      callable (the default is ``None``), the name is returned unchanged.
 
       :param default_name: The default name for the log file.
 
@@ -222,7 +222,7 @@ need to override.
 
       The default implementation calls the 'rotator' attribute of the handler,
       if it's callable, passing the source and dest arguments to it. If the
-      attribute isn't callable (the default is `None`), the source is simply
+      attribute isn't callable (the default is ``None``), the source is simply
       renamed to the destination.
 
       :param source: The source filename. This is normally the base
@@ -780,7 +780,7 @@ should, then :meth:`flush` is expected to do the needful.
 
    .. method:: close()
 
-      Calls :meth:`flush`, sets the target to :const:`None` and clears the
+      Calls :meth:`flush`, sets the target to ``None`` and clears the
       buffer.