#4 Log file not completely written in some cases

[Anonymous]

Found this problem with a backup where the filters were
mistakenly setup such that no files were processed for
backup.

In this case, the backup completes very quickly and
provides a warning at the bottom of the log file,
however, the log file on disk is truncated (looks like
file buffer was not flushed before closing). The log
file in the GUI is complete however.

Should be able to reproduce the problem by setting up a
backup with a filter to not process any files.