Apply suggestions from code review

Co-authored-by: Terry Jan Reedy <[email protected]>

Author: serhiy-storchaka

Doc/whatsnew/2.5.rst

@@ -1359,7 +1359,7 @@ complete list of changes, or look through the SVN logs for all the details.
   or 2 to specify which generation to collect. (Contributed by Barry Warsaw.)
 
 * The :func:`~heapq.nsmallest` and  :func:`~heapq.nlargest` functions in the :mod:`heapq`
-  module  now support a ``key`` keyword argument similar to the one provided by
+  module now support a ``key`` keyword argument similar to the one provided by
   the :func:`min`/:func:`max` functions and the :meth:`sort` methods.  For
   example::
 

Doc/whatsnew/3.4.rst

@@ -403,7 +403,7 @@ Some smaller changes made to the core Python language are:
 
 * Unicode database updated to UCD version 6.3.
 
-* :func:`min` and :func:`max` now accept a *default* keyword argument that
+* :func:`min` and :func:`max` now accept a keyword argument *default* that
   can be used to specify the value they return if the iterable they are
   evaluating has no elements.  (Contributed by Julian Berman in
   :issue:`18111`.)

Doc/whatsnew/3.6.rst

@@ -1664,7 +1664,7 @@ The :class:`~unittest.mock.Mock` class has the following improvements:
   (Contributed by Amit Saha in :issue:`26323`.)
 
 * The :meth:`Mock.reset_mock() <unittest.mock.Mock.reset_mock>` method
-  now support two optional keyword arguments: *return_value* and
+  now supports two optional keyword arguments: *return_value* and
   *side_effect*.
   (Contributed by Kushal Das in :issue:`21271`.)
 

Doc/whatsnew/3.7.rst

@@ -1198,7 +1198,7 @@ on POSIX systems and can be used to determine whether a path is a mount point.
 pdb
 ---
 
-:func:`pdb.set_trace` now takes an optional keyword argument *header*.
+:func:`pdb.set_trace` now takes optional keyword argument *header*.
 If given, it is printed to the console just before debugging
 begins.  (Contributed by Barry Warsaw in :issue:`31389`.)