src: fix #endif description in crypto_keygen.h

PR-URL: #40639
Reviewed-By: Richard Lau <rlau@redhat.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Voltrex <mohammadkeyvanzade94@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

src/crypto/crypto_keygen.h

@@ -301,6 +301,6 @@ using SecretKeyGenJob = KeyGenJob<SecretKeyGenTraits>;
 }  // namespace crypto
 }  // namespace node
 
-#endif  // !defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
+#endif  // defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
 #endif  // SRC_CRYPTO_CRYPTO_KEYGEN_H_