* server-src/diskfile.h (struct disk_s): Add orig_holdingdisk.
* server-src/diskfile.c: Set orig_holdingdisk.
* server-src/driver.c: Use orig_holdingdisk to report error.
* server-src/planner.c: Improve message.


git-svn-id: https://svn.code.sf.net/p/amanda/code/amanda/trunk@5643 a8d146d6-cc15-0410-8900-af154a0219e0