engine: vds_installer fix
engine: vds_installer fix

Previous commit changed the option from "-v" to "-V" in the
VdsInstaller.java file, but a change is also needed in the
vds_installer.py file. This commit does the necessary change.

Change-Id: I92c714345802e12a2e84074e65e6f409f26f6653
Signed-off-by: Oved Ourfali <e9e304ec34fb679dafc1cf0cb34ed0abd723b09a@redhat.com>

walteryang47/ovirt-engine,OpenUniversity/ovirt-engine,walteryang47/ovirt-engine,yingyun001/ovirt-engine,zerodengxinchao/ovirt-engine,OpenUniversity/ovirt-engine,zerodengxinchao/ovirt-engine,derekhiggins/ovirt-engine,derekhiggins/ovirt-engine,derekhiggins/ovirt-engine,yapengsong/ovirt-engine,OpenUniversity/ovirt-engine,derekhiggins/ovirt-engine,OpenUniversity/ovirt-engine,OpenUniversity/ovirt-engine,halober/ovirt-engine,yingyun001/ovirt-engine,zerodengxinchao/ovirt-engine,eayun/ovirt-engine,eayun/ovirt-engine,yapengsong/ovirt-engine,eayun/ovirt-engine,yingyun001/ovirt-engine,zerodengxinchao/ovirt-engine,halober/ovirt-engine,zerodengxinchao/ovirt-engine,yingyun001/ovirt-engine,halober/ovirt-engine,walteryang47/ovirt-engine,eayun/ovirt-engine,walteryang47/ovirt-engine,yapengsong/ovirt-engine,halober/ovirt-engine,yapengsong/ovirt-engine,yapengsong/ovirt-engine,walteryang47/ovirt-engine,eayun/ovirt-engine,yingyun001/ovirt-engine