This is a very subtile bug. Testing/developing on the desktop for mobile,
with a normal logbook in a git repo, resulted in a surprising effect.
When swichting from a cloud account to a NOCLOUD situation, the no cloud
repo was (not always) reset to the NOCLOUD_LOCALSTORAGE, but to the
normal logbook. Resuling in commits in the wrong repo.
This can easily be solved by setting the filename to NOCLOUD_LOCALSTORAGE,
when switching to NOCLOUD mode.
Signed-off-by: Jan Mulder <jlmulder@xs4all.nl>