CMake/Help/release/dev/GenerateExportHeader-include-guard.rst

GenerateExportHeader-include-guard
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* The :module:`GenerateExportHeader` module learned an optional
  ``INCLUDE_GUARD_NAME`` parameter to change the name of the include guard
  symbol written to the generated export header.
  Additionally, it now adds a comment after the closing ``#endif`` on the
  generated export header's include guard.