[clang] [Clang] Fix typo in __fprintf_chk Prototype (PR #80012)

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https://github.com/jyu2-git approved this pull request.

Before restruct:
It is defined as
clang/Basic/Builtins.def:731:BUILTIN(__builtin___printf_chk, "iicC*R.", "Fp:1:")

LGTM.
Thanks for fix.

https://github.com/llvm/llvm-project/pull/80012