Make summary entry format consistent (always end with pep or issue in parens).

Doc/whatsnew/3.4.rst

@@ -94,35 +94,37 @@ New expected features for Python implementations:
   (:pep:`446`).
 * command line option for :ref:`isolated mode <using-on-misc-options>`,
   (:issue:`16499`).
-* :ref:`improvements <codec-handling-improvements>` in the handling of
-  codecs that are not text encodings
+* :ref:`improvements in the handling of codecs <codec-handling-improvements>`
+  that are not text encodings (multiple issues).
 * :ref:`A ModuleSpec Type <whatsnew-pep-451>` for the Import System
   (:pep:`451`).  (Affects importer authors.)
 
 New library modules:
 
-* :mod:`asyncio`: New provisonal API for asynchronous IO (:pep:`3156`).
+* :mod:`asyncio`: New provisional API for asynchronous IO (:pep:`3156`).
 * :mod:`enum`: Support for enumeration types (:pep:`435`).
 * :mod:`ensurepip`: Bootstrapping the pip installer (:pep:`453`).
 * :mod:`pathlib`: Object-oriented filesystem paths (:pep:`428`).
 * :mod:`selectors`: High-level and efficient I/O multiplexing, built upon the
-  :mod:`select` module primitives.
+  :mod:`select` module primitives (part of :pep:`3156`).
 * :mod:`statistics`: A basic numerically stable statistics library (:pep:`450`).
 * :mod:`tracemalloc`: Trace Python memory allocations (:pep:`454`).
 
 Significantly Improved Library Modules:
 
 * :ref:`Single-dispatch generic functions <whatsnew-singledispatch>` in
-  :mod:`functools` (:pep:`443`)
-* New :mod:`pickle` :ref:`protocol 4 <whatsnew-protocol-4>` (:pep:`3154`)
-* :ref:`SHA-3 (Keccak) support <whatsnew-sha3>` for :mod:`hashlib`.
-* :ref:`TLSv1.1 and TLSv1.2 support <whatsnew-tls-11-12>` for :mod:`ssl`.
+  :mod:`functools` (:pep:`443`).
+* New :mod:`pickle` :ref:`protocol 4 <whatsnew-protocol-4>` (:pep:`3154`).
+* :ref:`SHA-3 (Keccak) support <whatsnew-sha3>` for :mod:`hashlib`
+  (:issue:`16113`).
+* :ref:`TLSv1.1 and TLSv1.2 support <whatsnew-tls-11-12>` for :mod:`ssl`
+  (:issue:`16692`).
 * :mod:`multiprocessing` now has :ref:`an option to avoid using os.fork
   on Unix <whatsnew-multiprocessing-no-fork>` (:issue:`8713`).
 * :mod:`email` has a new submodule, :mod:`~email.contentmanager`, and
   a new :mod:`~email.message.Message` subclass
   (:class:`~email.contentmanager.EmailMessage`) that :ref:`simplify MIME
-  handling <whatsnew_email_contentmanager>`.
+  handling <whatsnew_email_contentmanager>` (:issue:`18891`).
 
 CPython implementation improvements: