pythonGH-109190: Copyedit 3.12 What's New: Other Language Changes (python#109660)

Author: AA-Turner

Doc/whatsnew/3.12.rst

@@ -459,12 +459,12 @@ and others in :gh:`103764`.)
 Other Language Changes
 ======================
 
-* Add :ref:`perf_profiling` through the new
-  environment variable :envvar:`PYTHONPERFSUPPORT`,
-  the new command-line option :option:`-X perf <-X>`,
+* Add :ref:`support for the perf profiler <perf_profiling>` through the new
+  environment variable :envvar:`PYTHONPERFSUPPORT`
+  and command-line option :option:`-X perf <-X>`,
   as well as the new :func:`sys.activate_stack_trampoline`,
   :func:`sys.deactivate_stack_trampoline`,
-  and :func:`sys.is_stack_trampoline_active` APIs.
+  and :func:`sys.is_stack_trampoline_active` functions.
   (Design by Pablo Galindo. Contributed by Pablo Galindo and Christian Heimes
   with contributions from Gregory P. Smith [Google] and Mark Shannon
   in :gh:`96123`.)
@@ -473,7 +473,7 @@ Other Language Changes
   have a new a *filter* argument that allows limiting tar features than may be
   surprising or dangerous, such as creating files outside the destination
   directory.
-  See :ref:`tarfile-extraction-filter` for details.
+  See :ref:`tarfile extraction filters <tarfile-extraction-filter>` for details.
   In Python 3.14, the default will switch to ``'data'``.
   (Contributed by Petr Viktorin in :pep:`706`.)
 
@@ -501,8 +501,8 @@ Other Language Changes
 * A backslash-character pair that is not a valid escape sequence now generates
   a :exc:`SyntaxWarning`, instead of :exc:`DeprecationWarning`.
   For example, ``re.compile("\d+\.\d+")`` now emits a :exc:`SyntaxWarning`
-  (``"\d"`` is an invalid escape sequence), use raw strings for regular
-  expression: ``re.compile(r"\d+\.\d+")``.
+  (``"\d"`` is an invalid escape sequence, use raw strings for regular
+  expression: ``re.compile(r"\d+\.\d+")``).
   In a future Python version, :exc:`SyntaxError` will eventually be raised,
   instead of :exc:`SyntaxWarning`.
   (Contributed by Victor Stinner in :gh:`98401`.)
@@ -531,7 +531,7 @@ Other Language Changes
   when summing floats or mixed ints and floats.
   (Contributed by Raymond Hettinger in :gh:`100425`.)
 
-* Exceptions raised in a typeobject's ``__set_name__`` method are no longer
+* Exceptions raised in a class or type's ``__set_name__`` method are no longer
   wrapped by a :exc:`RuntimeError`. Context information is added to the
   exception as a :pep:`678` note. (Contributed by Irit Katriel in :gh:`77757`.)