I logged the issue as a bug with ID 107991and it will be fixed in the next SP. I am not able to give you a workaround, because the text is embedded in resx file.
the Telerik team
Do you want to have your say when we set our development plans?
Do you want to know when a feature you care about is added or when a bug fixed?
Telerik Public Issue Tracking
system and vote to affect the priority of the items