curl: fix openssl double free during pkg_shutdown

Author: rcmcdonald91

external/curl/lib/vtls/openssl.c

@@ -1705,6 +1705,8 @@ static int ossl_init(void)
 #else
     OPENSSL_INIT_LOAD_CONFIG |
 #endif
+    /* XXX: keep until upstream has this... */
+    OPENSSL_INIT_NO_ATEXIT |
     0;
   OPENSSL_init_ssl(flags, NULL);
 #else