Description of problem:
virt-inspector spat out several suspicious messages, before exiting with non-zero status, when inspecting an existing rawhide guest image


Version-Release number of selected component (if applicable):
$ virt-inspector --verseion
1.0.85


How reproducible:
Always


Steps to Reproduce:
1. Using the LiveCD for F13 virtualization test day, with a mount to see my existing guest images on the host machine
2. virt-inspector /sysroot/libvirt/images/rawhide.img
  
Actual results:
Most of the command is okay, but the first line is suspicious, and the final line demonstrated the problem:

$ virt-inspector /sysroot/libvirt/images/rawhide.img
No grub default specified at /usr/lib/perl5/Sys/Guestfs/Lib.pm line 1646.
linux fedora i386 14 on /dev/vg_vmrawhide/lv_root:
  Mountpoints:
    /dev/vg_vmrawhide/lv_root      /
    /dev/sda1                      /boot
    /dev/vg_vmrawhide/lv_swap      swap
...
    mesa-libGL 7.8
    gok 2.30.0
  Kernels:
Can't use an undefined value as an ARRAY reference at /usr/bin/virt-inspector line 411.
$ echo $?
11

Expected results:
reasonable information, and exit status of 0


Additional info:
reproduced on other images as well (F13, Windows 2k8):
$ virt-inspector /sysroot/libvirt/images/windows_2008.img 
windows  on /dev/sda1:
  Mountpoints:
    /dev/sda1                      /
  Filesystems:
    /dev/sda1:
      type: ntfs
      content: windows-root
  Applications:
  Kernels:
Can't use an undefined value as an ARRAY reference at /usr/bin/virt-inspector line 411.