Enable init checker

clang-tidy added cppcoreguidelines-init-variables as a check, which is
something we already enforce to some extent, but getting CI to enforce
it will help reviews move faster.

Tested: Code compiles.  Noop changes.

Signed-off-by: Ed Tanous <edtanous@google.com>
Change-Id: I7e10950de617b1d3262265572b1703f2e60b69d0
diff --git a/include/ssl_key_handler.hpp b/include/ssl_key_handler.hpp
index abb1c94..eb59bee 100644
--- a/include/ssl_key_handler.hpp
+++ b/include/ssl_key_handler.hpp
@@ -256,8 +256,7 @@
     {
         std::cerr << "Generating x509 Certificate\n";
         // Use this code to directly generate a certificate
-        X509* x509;
-        x509 = X509_new();
+        X509* x509 = X509_new();
         if (x509 != nullptr)
         {
             // get a random number from the RNG for the certificate serial
@@ -280,8 +279,7 @@
             X509_set_pubkey(x509, pPrivKey);
 
             // get the subject name
-            X509_NAME* name;
-            name = X509_get_subject_name(x509);
+            X509_NAME* name = X509_get_subject_name(x509);
 
             X509_NAME_add_entry_by_txt(
                 name, "C", MBSTRING_ASC,