Fix a issue about tree repo index
Change-Id: I49c5350bbf496115fd5b3916e10463c78ba7685a
Signed-off-by: Liping Cheng <lcheng@redhat.com>
Reviewed-on: https://code.engineering.redhat.com/gerrit/177176
Tested-by: Libvirt Jenkins <libvirt-jenkins@redhat.com>
Signed-off-by: Liping Cheng <lcheng@redhat.com>