Align release notes and docs

Author: localspook

clang-tools-extra/docs/ReleaseNotes.rst

@@ -145,8 +145,9 @@ New checks
 - New :doc:`modernize-use-concise-preprocessor-directives
   <clang-tidy/checks/modernize/use-concise-preprocessor-directives>` check.
 
-  Rewrites preprocessor conditions like ``#if defined(MEOW)`` as ``#ifdef MEOW``
-  and ``#elif !defined(MEOW)`` as ``#elifndef MEOW``.
+  Finds uses of ``#if`` that be simplified to ``#ifdef`` or ``#ifndef`` and,
+  since C23 and C++23, uses of ``#elif`` that can be simplified to ``#elifdef``
+  or ``#elifndef``.
 
 - New :doc:`modernize-use-scoped-lock
   <clang-tidy/checks/modernize/use-scoped-lock>` check.

clang-tools-extra/docs/clang-tidy/checks/modernize/use-concise-preprocessor-directives.rst

@@ -3,7 +3,9 @@
 modernize-use-concise-preprocessor-directives
 =============================================
 
-Shortens `#if` preprocessor conditions:
+Finds uses of ``#if`` that be simplified to ``#ifdef`` or ``#ifndef`` and,
+since C23 and C++23, uses of ``#elif`` that can be simplified to ``#elifdef``
+or ``#elifndef``:
 
 .. code-block:: c++
 
@@ -15,7 +17,7 @@ Shortens `#if` preprocessor conditions:
   #ifdef MEOW
   #ifndef MEOW
 
-And, since C23 and C++23, shortens `#elif` conditions too:
+Since C23 and C++23:
 
 .. code-block:: c++