src: mark SSLWrap destructor as virtual

Like the previous commit but this time for the SSLWrap destructor.

diff --git a/src/node_crypto.h b/src/node_crypto.h
index 3c78ed6..4d2b9ce 100644 (file)
--- a/src/node_crypto.h
+++ b/src/node_crypto.h
@@ -164,7 +164,7 @@ class SSLWrap {
     CHECK_NE(ssl_, nullptr);
   }
 
-  ~SSLWrap() {
+  virtual ~SSLWrap() {
     if (ssl_ != nullptr) {
       SSL_free(ssl_);
       ssl_ = nullptr;