Sample output when there are changes:
icingaweb2@web:~$ icingacli director syncrule check --id 36
There are pending changes for this Sync Rule. You should trigger a new Sync Run.
Expected modifications: 2x create, 0x modify, 0x delete
icingaweb2@web:~$ echo $?
1
...when there are no changes:
icingaweb2@web:~$ icingacli director syncrule check --id 34
This Sync Rule is in sync
icingaweb2@web:~$ echo $?
0
...and when something failes:
icingaweb2@web:~$ icingacli director syncrule check --id 32
This Sync Rule failed: No data has been imported for "Benutzergruppen aus Nagios" yet
icingaweb2@web:~$ echo $?
2
fixes#1849
Thomas Gelf