Use a hidden directory as tempdir
Use a hidden directory as tempdir

For the sync-commit-approach we use in the csync syncer, we (currently?) need a
temporary directory, which contains the last state of the proddir before
the sync. This commit is a little cosmetic fix, which makes this temp
directory atleast a hidden directory.

formorer/AnySyncd,credativ/anysyncd,credativ/anysyncd,formorer/AnySyncd