Description of problem:
  Pirut encountered an unhandled exception after prompting for a reboot.

Version-Release number of selected component (if applicable):
  pirut.noarch.1.3.10-1.fc8

How reproducible:
  One out of two times?

Steps to Reproduce:
1. The yum-updatesd service daemon discovers updates are available. 
2. Select Apply.
3. After "Downloading software", "Updating software", etc. phases
   complete, since a kernel update was included, the dialog titled 
   "Reboot recommended" displays:
      Due to the updates installed, it is recommended
      that you reboot your system.  You can either reboot 
      now or choose to do so at a later time.
      Reboot later    Reboot now
4. Select "Reboot now"

Actual results:
A dialog titled "Exception Occurred" displays:
   An unhandled exception has occurred.  This is most likely
   a bug.  Please save the crash dump and file a detailed bug
   report against pirut ....

Expected results:
Just quietly reboot without additional manual intervention.

Additional info:
  One of the packages being updated in this transaction was pirut, from:
  pirut.noarch.1.3.10-1.fc8
to:
  pirut.noarch 1.3.11-1.fc8

  This happened during a second run of pirut.  The first run was
processing 169 package updates, and in its "Updating software"
phase it progressed to "Updating wireless tools" ... and then
made no further progress.  No new activity was recorded in 
/etc/log/yum.log for more than an hour, while neither the pup nor 
puplet processes accumulated any more CPU time (per System Monitor).
So resorted to System, Shutdown, Restart, and pirut proclaims
87 package updates are available, and after processing them (using
the previously downloaded package data), the exception noted above
happened.