This switches virt-sysprep to use guestmount instead of guestfish.
This makes the script a little bit easier to modify for sysadmins.
This commit also adds:
- dhcp-client-state
- dhcp-server-state
- logfiles
- random-seed
- smolt-uuid
- yum-uuid
SELinux relabelling, and a section on security in the manual page.
Killing it is always a bad idea, because the qemu subprocess will be
left hanging around. The best thing is to send the exit command.
This also makes the change to virt-sysprep.
