[clang-tools-extra] [clang-tidy] Fix typoed option name in `bugprone-signed-char-misuse` (PR #161064)

[Victor Chernyakin via cfe-commits]

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@@ -35,7 +35,7 @@ class SignedCharMisuseCheck : public ClangTidyCheck {
       const ast_matchers::internal::Matcher<clang::QualType> &IntegerType,
       const std::string &CastBindName) const;
 
-  const StringRef CharTypdefsToIgnoreList;
+  const StringRef CharTypedefsToIgnoreList;
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localspook wrote:

There's already a private specifier, it's just a little bit further up

https://github.com/llvm/llvm-project/pull/161064