Description of problem:
Each upgrade to the "amanda" package results in the userid "amanda" being changed to "amandabackup" FOR ALL HOST ENTRIES in /var/lib/amanda/.amandahosts, including entries the scriptlet has no business changing.  It should only be changing those that were part of the originally installed .amandahosts file, i.e. those for hosts names "localhost" and "localhost.localdomain", and not other (remote) host names.

Version-Release number of selected component (if applicable):
2.5.2.p1-9 and up (including current release 2.5.2.p1-12)

How reproducible:
Consistent.

Steps to Reproduce:
1. Add entries to .amandahosts file for remote hosts with user "amanda".
2. Upgrade to new version of amanda package.
3. Check resulting .amandahosts file.
  
Actual results:
All entries in .amandahosts that have a username "amanda" will have that changed to "amandahosts".  This breaks things if the remote host still happens to use the hostname "amanda".  (This will be the case for almost any remote host not running FC9.)

Expected results:
The postinstall scriptlet should only change the original entries for "localhost" and "localhost.localdomain", leaving other intact.  Whether or not any other host entries need to be changed or not cannot easily be determined automatically, and should be left up to the maintainer of the system.

Additional info: