pythonGH-109190: Copyedit 3.12 What's New: Other Language Changes (py…

…thonGH-109660)

(cherry picked from commit cade596)

Co-authored-by: Adam Turner <9087854+AA-Turner@users.noreply.github.com>

Doc/whatsnew/3.12.rst

@@ -460,12 +460,12 @@ 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`.)
@@ -474,7 +474,7 @@ 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`.)
 
@@ -502,8 +502,8 @@ 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`.)
@@ -532,7 +532,7 @@ Other Language Changes
  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`.)