Fixes backup backuping itself

[UltimateByte]

This issue has caused enough trouble. Time to annihilate the issue.
Thanks @marvinlehmann for the fix
#1563

Sample output:

arkserver@gaben:~$ ./arkserver b
[  OK  ] Backup arkserver: Backup starting
        * Previous backup was created less than 1 day ago, total size 2.7G
[ WARN ] Backup arkserver: arkserver is currently running
        * Although unlikely; creating a backup while arkserver is running might corrupt the backup.
[  OK  ] Backup arkserver: Completed: arkserver-2017-10-29-163529.tar.gz, total size 2.7G

arkserver@gaben:~$ du -sh lgsm/backup/*
2.7G    lgsm/backup/arkserver-2017-10-29-155940.tar.gz
2.7G    lgsm/backup/arkserver-2017-10-29-163529.tar.gz

[dgibbs64]

I will complete this merge :)

[lock]

This thread has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.