[clang-tidy] Switch to a more common way of customizing check behavior.

This should have been done this way from the start, however I somehow missed
r257177.

llvm-svn: 270215
diff --git a/clang-tools-extra/clang-tidy/cert/CERTTidyModule.cpp b/clang-tools-extra/clang-tidy/cert/CERTTidyModule.cpp
index 6ba0206..1a0d9c5 100644
--- a/clang-tools-extra/clang-tidy/cert/CERTTidyModule.cpp
+++ b/clang-tools-extra/clang-tidy/cert/CERTTidyModule.cpp
@@ -69,6 +69,11 @@
     CheckFactories.registerCheck<StrToNumCheck>(
         "cert-err34-c");
   }
+  ClangTidyOptions getModuleOptions() override {
+    ClangTidyOptions Options;
+    Options.CheckOptions["cert-oop11-cpp.UseCERTSemantics"] = "1";
+    return Options;
+  }
 };
 
 } // namespace cert