Fix some Sphinx warnings in changelog

Misc/NEWS.d/next/C API/2024-04-08-09-44-29.gh-issue-117534.54ZE_n.rst

@@ -1,2 +1,3 @@
-Improve validation logic in the C implementation of :meth:`datetime.fromisoformat`
-to better handle invalid years. Patch by Vlad Efanov.
+Improve validation logic in the C implementation of
+:meth:`datetime.datetime.fromisoformat` to better handle invalid years.
+Patch by Vlad Efanov.

Misc/NEWS.d/next/Library/2018-02-13-10-02-54.bpo-32839.McbVz3.rst

@@ -1 +1 @@
-Add the :meth:`after_info` method for Tkinter widgets.
+Add the :meth:`!after_info` method for Tkinter widgets.

Misc/NEWS.d/next/Library/2024-04-17-21-28-24.gh-issue-116931._AS09h.rst

@@ -1 +1 @@
-Add parameter *fileobj* check for :func:`tarfile.addfile()`
+Add parameter *fileobj* check for :func:`tarfile.TarFile.addfile`

Misc/NEWS.d/next/Library/2024-04-24-12-20-48.gh-issue-118013.TKn_kZ.rst

@@ -5,5 +5,5 @@ to that instance's class to persist in an internal cache in the
 class was dynamically created, the class held strong references to other
 objects which took up a significant amount of memory, and the cache
 contained the sole strong reference to the class. The fix for the regression
-leads to a slowdown in :func:`getattr_static`, but the function should still
+leads to a slowdown in :func:`!getattr_static`, but the function should still
 be significantly faster than it was in Python 3.11. Patch by Alex Waygood.

Misc/NEWS.d/next/Library/2024-04-24-12-29-33.gh-issue-118221.2k_bac.rst

@@ -1,2 +1,3 @@
-Fix a bug where :func:`sqlite3.iterdump` could fail if a custom :attr:`row
-factory <sqlite3.Connection.row_factory>` was used. Patch by Erlend Aasland.
+Fix a bug where :meth:`sqlite3.Connection.iterdump` could fail if a custom
+:attr:`row factory <sqlite3.Connection.row_factory>` was used. Patch by Erlend
+Aasland.