run_test_suite: --tmpdir not honored in libvirt storage directory
run_test_suite --tmpdir ~/foo, the libvirt storage is
still set up with
/tmp/TailsToaster/TailsToasterStorage, which is not
created, so it fails
Call to virStoragePoolCreate failed: cannot open directory '/tmp/TailsToaster/TailsToasterStorage': No such file or directory (Guestfs::Error)
According to kibi, setting
$TMPDIR instead should work.