UsageManagerInternal fix

aed5e9dc2a6882139bc38073923be5a3bacfd9d2 seems to inroduce some typo to run

Signed-off-by: Laszlo Hornyak <laszlo.hornyak@gmail.com>
CLOUDSTACK4515: UI > Settings tab of zone/cluster/account/primaryStorage detailView > add Description field.