CLOUDSTACK-4187: 2.2.1 - 4.2 Upgrade: Few Guest OS Types information is inconsistent on the Upgraded Setup when compared with the fresh 4.2 Installation.
Fix indent to stop tabnanny from complaining

Signed-off-by: Prasanna Santhanam <tsp@apache.org>
(cherry picked from commit 78c802da1343abe2c82f9a7dfb7903f81287abe9)