tools: libvirt-guests: correctly check shutdown value
tools: libvirt-guests: correctly check shutdown value

The variable cleanup introduced a typo.

Signed-off-by: Ján Tomko <4cab11cfb98d3c937327354a78eb07dbb6ee2bc6@redhat.com>
Fixes: 08071ec0f113bb1fe8dcc263cb6bf87529e8b76b
Reported-by: Bronek Kozicki
Closes: https://gitlab.com/libvirt/libvirt/-/issues/27

olafhering/libvirt,olafhering/libvirt,nertpinx/libvirt,crobinso/libvirt,zippy2/libvirt,jfehlig/libvirt,nertpinx/libvirt,jardasgit/libvirt,crobinso/libvirt,jfehlig/libvirt,zippy2/libvirt,jardasgit/libvirt,crobinso/libvirt,libvirt/libvirt,libvirt/libvirt,libvirt/libvirt,jfehlig/libvirt,crobinso/libvirt,nertpinx/libvirt,libvirt/libvirt,zippy2/libvirt,olafhering/libvirt,zippy2/libvirt,jardasgit/libvirt,nertpinx/libvirt,jardasgit/libvirt,jardasgit/libvirt,olafhering/libvirt,nertpinx/libvirt,jfehlig/libvirt