rrd_set_error("illegal attempt to update using time %ld when "
"last update time is %ld (minimum one second step)",
current_time, rrd.live_head->last_up);
rrd_set_error("illegal attempt to update using time %ld when "
"last update time is %ld (minimum one second step)",
current_time, rrd.live_head->last_up);