STATS_TPL_MAX_STR_SPEC_LEN
ntpl * (STATS_TPL_MAX_STR_SPEC_LEN + 1), SBUF_FIXEDLEN);
char tpl_spec[STATS_TPL_MAX_STR_SPEC_LEN];
len = max(req->newlen + 1, nrates * (STATS_TPL_MAX_STR_SPEC_LEN + 5));