[3.14] gh-62480: De-personalize "Partial mocking" section in unittest.mock examples (GH-141321)

Doc/library/unittest.mock-examples.rst

@@ -600,13 +600,13 @@ this list of calls for us::
 Partial mocking
 ~~~~~~~~~~~~~~~
 
-In some tests I wanted to mock out a call to :meth:`datetime.date.today`
-to return a known date, but I didn't want to prevent the code under test from
-creating new date objects. Unfortunately :class:`datetime.date` is written in C, and
-so I couldn't just monkey-patch out the static :meth:`datetime.date.today` method.
+For some tests, you may want to mock out a call to :meth:`datetime.date.today`
+to return a known date, but don't want to prevent the code under test from
+creating new date objects. Unfortunately :class:`datetime.date` is written in C,
+so you cannot just monkey-patch out the static :meth:`datetime.date.today` method.
 
-I found a simple way of doing this that involved effectively wrapping the date
-class with a mock, but passing through calls to the constructor to the real
+Instead, you can effectively wrap the date
+class with a mock, while passing through calls to the constructor to the real
 class (and returning real instances).
 
 The :func:`patch decorator <patch>` is used here to