Enabling debug

[KlugFR]

IMHO, if debug is enabled, the script should not go into background (line 125).
Also, with current code, the last debug display (lines 199 to 202) won't work, because script goes in backgound.

Suggested solution is to add a test line 125.
Before : if [ ! "$1" == "--bg" ]; then
After : if [ ! "$1" == "--bg" ] && [ $DEBUG == 0 ]; then

With debug enabled, CLI result before:

STARTTIME: 1598712674, ENDTIME: 1598717672, STATE: 6, JOBID: {ff36576d-82e8-4ce9-bfb3-6a851d325f80}
DETAILS: <ProgressDetails total_size="171793088000" total_used_size="123613915136" processed_data_size_bytes="125104893952" read_data_size_bytes="124324413440" transferred_data_size_bytes="60974703532" processing_speed="27753283" source_read_load="87" source_processing_load="19" network_load="0" target_write_load="12" network_throttling_enabled="false" repository_throttling_enabled="false" />
TARGET: 192.168.XXX.YYY:/mnt/Backup/server.domain.tld, FST: nfs, LOGIN: , DOMAIN:

After:

STARTTIME: 1598712674, ENDTIME: 1598717672, STATE: 6, JOBID: {ff36576d-82e8-4ce9-bfb3-6a851d325f80}
DETAILS: <ProgressDetails total_size="171793088000" total_used_size="123613915136" processed_data_size_bytes="125104893952" read_data_size_bytes="124324413440" transferred_data_size_bytes="60974703532" processing_speed="27753283" source_read_load="87" source_processing_load="19" network_load="0" target_write_load="12" network_throttling_enabled="false" repository_throttling_enabled="false" />
TARGET: 192.168.XXX.YYY:/mnt/Backup/server.domain.tld, FST: nfs, LOGIN: , DOMAIN:
PROCESSED: 116.5 GB, READ: 115.7 GB, TRANSFERRED: 60974703532
SPEED: 26.4, SOURCELOAD: 87, NETLOAD: 0, TARGETLOAD: 12
DURATION: 01:23:18, START: Saturday, 29 August 2020 16:51:14, END: Saturday, 29.08.2020 18:14:32, STIME: 16:51:14, ETIME: 18:14:32
ERRLOG:
HN: server.domain.tld
STAT: Success
BGCOLOR: #00B050
START: Saturday, 29 August 2020 16:51:14
SUCCESS: 1
ERROR: 0
WARNING: 0
STIME: 16:51:14
ETIME: 18:14:32
READ: 115.7 GB
TRANSFERRED: 56.7 GB
DURATION: 01:23:18
PROCESSED: 116.5 GB
BOTTLENECK: Source
ERRLOG:
SPEED: 26.4
TARGET: 192.168.XXX.YYY:/mnt/Backup/server.domain.tld
FST: nfs
LOGIN:
DOMAIN:
sed: -e expression #30, char 19: unknown option to `s'

The last line (that ends up with a blank email except the headers) is explained in #3

[grufocom]

good idea - changed that with latest version!