* perl/Amanda/Taper/Scan.pm (oldest_reusable_volume): Check the
  labelstr.
* installcheck/Amanda_Taper_Scan.pl: Test it.


git-svn-id: https://amanda.svn.sourceforge.net/svnroot/amanda/amanda/branches/3_3@5093 a8d146d6-cc15-0410-8900-af154a0219e0