* device-src/diskflat-device.c: Error is DEVICE_STATUS_VOLUME_UNLABELED
  if the file do not exists.
* device-src/vfs-device.c (vfs_device_read_label): Do not reset an
  error when it is set.
* installcheck/Amanda_Rest_Storages.pl: Fix fo device change.
* perl/Amanda/Changer/diskflat.pm: Fix perl warning.
* perl/Amanda/CheckDump.pm ,perl/Amanda/FetchDump.pm: Create a
  log.<timestamp>.0 file can a checkdump.<timestamp> or
  fetchdump.<timestamp>
* perl/Amanda/Rest/Runs.pm: Do not create the checkdump.$$ or
  fetchdump.$$. list also list checkdump and fetchdump run.


git-svn-id: https://svn.code.sf.net/p/amanda/code/amanda/trunk@5906 a8d146d6-cc15-0410-8900-af154a0219e0