https://fedorahosted.org/sssd/ticket/1625
Additional info:
....the class of configuration error messages could be
changed to match the default debug level.
Apparently this was covered with #1345 and in server.c
if (debug_level == SSSDBG_UNRESOLVED) {
/* set debug level if any in conf_entry */
ret = confdb_get_int(ctx->confdb_ctx, conf_entry,
CONFDB_SERVICE_DEBUG_LEVEL,
SSSDBG_DEFAULT,
&debug_level);