[clang-tools-extra] [llvm] New check `misc-header-guard` (PR #177315)

[via cfe-commits]

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@@ -103,6 +103,14 @@ New checks
   Finds and removes redundant conversions from ``std::[w|u8|u16|u32]string_view`` to
   ``std::[...]string`` in call expressions expecting ``std::[...]string_view``.
 
+- New :doc:`misc-header-guard <clang-tidy/checks/misc/header-guard>` check.
+
+  Finds and fixes header guards.
+  The option ``misc-header-guard.HeaderDirs`` allows configuring one or more
+  header directory names. Default value is ``include``.
+  The option ``misc-header-guard.Prefix`` allows specifying an optional prefix
+  that is applied to each header guard. By default, no prefix is used.
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EugeneZelenko wrote:

One sentence is enough. Everything else belongs to documentation.

https://github.com/llvm/llvm-project/pull/177315