Fix tar file large file size parsing
Fix tar file large file size parsing

(cherry picked from commit 1f75e0914dfe709f3c2fa71b6575fd634fd47c28)

uroni/urbackup_backend,uroni/urbackup_backend,uroni/urbackup_backend,uroni/urbackup_backend,uroni/urbackup_backend,uroni/urbackup_backend,uroni/urbackup_backend