bpo-35110: Fix yet few spaces before dashes. (GH-10255)

Author: serhiy-storchaka

Doc/distutils/configfile.rst

@@ -13,8 +13,8 @@ edit is a cheap and easy way to solicit it.  Configuration files also let you
 provide default values for any command option, which the installer can then
 override either on the command-line or by editing the config file.
 
-The setup configuration file is a useful middle-ground between the setup script
----which, ideally, would be opaque to installers [#]_---and the command-line to
+The setup configuration file is a useful middle-ground between the setup
+script---which, ideally, would be opaque to installers [#]_---and the command-line to
 the setup script, which is outside of your control and entirely up to the
 installer.  In fact, :file:`setup.cfg` (and any other Distutils configuration
 files present on the target system) are processed after the contents of the

Doc/library/optparse.rst

@@ -379,8 +379,8 @@ types is covered in section :ref:`optparse-extending-optparse`.
 Handling boolean (flag) options
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
-Flag options---set a variable to true or false when a particular option is seen
----are quite common.  :mod:`optparse` supports them with two separate actions,
+Flag options---set a variable to true or false when a particular option is
+seen---are quite common.  :mod:`optparse` supports them with two separate actions,
 ``store_true`` and ``store_false``.  For example, you might have a ``verbose``
 flag that is turned on with ``-v`` and off with ``-q``::