Plural is used to show the phone numbers entered by the user. l10nargs variable is declared to show the messageBodyParams to show FdnCheckError in the original code, following the same procedure for general error. Attaching screen shot to show the UI for general error.
![invalid_address](https://f.cloud.github.com/assets/5180021/1405707/dfcf6714-3d3a-11e3-80dd-00806dce7ae1.png)