* amar-src/amar.h: Fix constant.
* amar-src/amarchiver.c: Do not append attribute id (16) to filename
  on extraction.
* installcheck/Amanda_Archive.pl: Add check.
* installcheck/amarchiver.pl: Add check.
* perl/Amanda/Archive.swg: Document and export attribute id.


git-svn-id: https://svn.code.sf.net/p/amanda/code/amanda/trunk@5650 a8d146d6-cc15-0410-8900-af154a0219e0