stat: add diskutil aggregated sectors to normal output

Since we are now collecting sectors in the disk utilization data we
should include them in the aggregated data as well.

I tested this with an LVM mirror. I also tested this on an mdadm mirror
but all the aggregated and slave data was zero.

Fixes: 75cbc26 ("diskutil: Report how
many sectors have been read and written")
Signed-off-by: Vincent Fu <vincent.fu@samsung.com>

stat.c

@@ -957,11 +957,13 @@ static void show_agg_stats(struct disk_util_agg *agg, int terse,
  return;
 
  if (!terse) {
- log_buf(out, ", aggrios=%llu/%llu, aggrmerge=%llu/%llu, "
- "aggrticks=%llu/%llu, aggrin_queue=%llu, "
- "aggrutil=%3.2f%%",
+ log_buf(out, ", aggrios=%llu/%llu, aggsectors=%llu/%llu, "
+ "aggrmerge=%llu/%llu, aggrticks=%llu/%llu, "
+ "aggrin_queue=%llu, aggrutil=%3.2f%%",
  (unsigned long long) agg->ios[0] / agg->slavecount,
  (unsigned long long) agg->ios[1] / agg->slavecount,
+ (unsigned long long) agg->sectors[0] / agg->slavecount,
+ (unsigned long long) agg->sectors[1] / agg->slavecount,
  (unsigned long long) agg->merges[0] / agg->slavecount,
  (unsigned long long) agg->merges[1] / agg->slavecount,
  (unsigned long long) agg->ticks[0] / agg->slavecount,