* device-src/s3.c: Undo previous patch.
* device-src/s3-device.c: Verify the bucket can be used as a subdomain
  if S3-SUBDOMAIN is set.


git-svn-id: https://svn.code.sf.net/p/amanda/code/amanda/branches/3_3@5377 a8d146d6-cc15-0410-8900-af154a0219e0