Log an HSDesc we failed to parse at Debug loglevel

  o Minor bugfixes (onion services, logging):

    - In hs_cache_store_as_client() log an HSDesc we failed to parse at Debug

      loglevel. Tor used to log it at Warning loglevel, which caused

      very long log lines to appear for some users. Fixes bug 29135; bugfix on

      0.3.2.1-alpha.

  /* Create client cache descriptor object */

  client_desc = cache_client_desc_new(desc_str, identity_pk);

  if (!client_desc) {

    log_warn(LD_GENERAL, "Failed to parse received descriptor %s.",

             escaped(desc_str));

    log_warn(LD_GENERAL, "HSDesc parsing failed!");

    log_debug(LD_GENERAL, "Failed to parse HSDesc: %s.", escaped(desc_str));

    goto err;

  }