[clang-format][docs] Fix a bad comment

[kuzkry]

Summary

Follow up to 8f310d1967c20d348c617af3a30999031c71fee0.

[kuzkry]

Hey @HazardyKnusperkeks,

I've just noticed that the suggestion from your inline comment in D119682 is slightly incorrect. The first commit that introduced IndentRequires was 840e651dc6d7fe652667eb8b4d04ef4daf4769df and it was released already in clang 12.

Btw. could you please deliver this one for me? My name and email in git format is "Krystian Kuzniarek <[e-mail]>"

[HazardyKnusperkeks]

Will do with my next push batch.

clang/docs/ClangFormatStyleOptions.rst

.. code-block:: c++
        #endif
 
 
 
 **IndentRequiresClause** (``Boolean``) :versionbadge:`clang-format 15`
   Indent the requires clause in a template. This only applies when
   ``RequiresClausePosition`` is ``OwnLine``, or ``WithFollowing``.
 
-  In clang-format 13 and 14 it was named ``IndentRequires``.
+  In clang-format 12, 13 and 14 it was named ``IndentRequires``.
 
   .. code-block:: c++
 
      true:
      template <typename It>
        requires Iterator<It>
      void sort(It begin, It end) {
        //....

clang/include/clang/Format/Format.h

 
   /// IndentExternBlockStyle is the type of indenting of extern blocks.
   /// \version 12
   IndentExternBlockStyle IndentExternBlock;
 
   /// Indent the requires clause in a template. This only applies when
   /// ``RequiresClausePosition`` is ``OwnLine``, or ``WithFollowing``.
   ///
-  /// In clang-format 13 and 14 it was named ``IndentRequires``.
+  /// In clang-format 12, 13 and 14 it was named ``IndentRequires``.
   /// \code
   ///    true:
   ///    template <typename It>
   ///      requires Iterator<It>
   ///    void sort(It begin, It end) {
   ///      //....
   ///    }
   ///