message: Fix shadow warning when GNUTLS is enabled
diff: @@ -432,17 +432,18 @@ static int mfem_gnutls_verify_callback(gnutls_session_t session)
  }
  #ifdef MFEM_DEBUG
  - gnutls_datum_t out;
  + gnutls_datum_t status_str;
  gnutls_certificate_type_t type = gnutls_certificate_type_get(session);
  - ret = gnutls_certificate_verification_status_print(status, type, &out, 0);
  + ret = gnutls_certificate_verification_status_print(
  + status, type, &status_str, 0);
  if (ret < 0)
  {
  mfem::out << "Error in gnutls_certificate_verification_status_print:"
  << gnutls_strerror(ret) << std::endl;
  return GNUTLS_E_CERTIFICATE_ERROR;
  }
  - mfem::out << out.data << std::endl;
  - gnutls_free(out.data);
  + mfem::out << status_str.data << std::endl;
  + gnutls_free(status_str.data);
  #endif
  #else // --> GNUTLS_VERSION_NUMBER < 0x030104
  int ret = gnutls_certificate_verify_peers2(session, &status);
  