show # age and size of file and total (sum) of file sizes

[WolfgangFahl]

see #1

[WolfgangFahl]

expireBackups
#   0:   0.0 days(  4678 MB/  4678 MB)→./sql_backup.2022-04-02.tgz
#   1:   3.0 days(  4674 MB/  9352 MB)→./sql_backup.2022-03-30.tgz
#   2:   4.0 days(  4671 MB/ 14023 MB)→./sql_backup.2022-03-29.tgz
#   3:   5.0 days(  4817 MB/ 18840 MB)→./sql_backup.2022-03-28.tgz
#   4:   7.0 days(  4662 MB/ 23502 MB)→./sql_backup.2022-03-26.tgz
#   5:   9.0 days(  4653 MB/ 28155 MB)→./sql_backup.2022-03-24.tgz
#   6:  11.0 days(  4647 MB/ 32802 MB)→./sql_backup.2022-03-22.tgz
#   7:  15.0 days(  4645 MB/ 37447 MB)→./sql_backup.2022-03-18.tgz
#   8:  17.0 days(  4648 MB/ 42095 MB)→./sql_backup.2022-03-16.tgz
#   9:  18.0 days(  4645 MB/ 46740 MB)→./sql_backup.2022-03-15.tgz
#  10:  19.0 days(  4792 MB/ 51532 MB)→./sql_backup.2022-03-14.tgz
#  11:  20.0 days(  4640 MB/ 56173 MB)→./sql_backup.2022-03-13.tgz
#  12:  22.0 days(  4624 MB/ 60796 MB)→./sql_backup.2022-03-11.tgz
#  13:  23.0 days(  4622 MB/ 65418 MB)→./sql_backup.2022-03-10.tgz
#  14:  35.0 days(  4588 MB/ 70006 MB)→./sql_backup.2022-02-26.tgz
#  15:  37.0 days(  4582 MB/ 74588 MB)→./sql_backup.2022-02-24.tgz
#  16:  39.0 days(  4577 MB/ 79165 MB)→./sql_backup.2022-02-22.tgz
...
# 212: 544.0 days(  6088 MB/840168 MB)→./sql_backup.2020-10-05.tgz
# 213: 545.0 days(   892 MB/841060 MB)→./sql_backup.2020-10-04.tgz
# 214: 546.0 days(   892 MB/841952 MB)→./sql_backup.2020-10-03.tgz
# 215: 549.0 days(   891 MB/842843 MB)→./sql_backup.2020-09-30.tgz
# 216: 552.0 days(   890 MB/843733 MB)→./sql_backup.2020-09-27.tgz
...
# 680:1508.0 days(   516 MB/1411092 MB)→./sql_backup.2018-02-14.tgz
# 681:1509.0 days(  3636 MB/1414728 MB)→./sql_backup.2018-02-12.tgz
# 682:1510.0 days(   514 MB/1415241 MB)→./sql_backup.2018-02-11.tgz