Forgot login -> Without entering email id, Go button clicked, validation message needs to be checked.

1 Observation
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Click Forgot Login.
Without entering email address, click Go button.
The following message is shown :
"There seem to be multiple login name for this email address."

( In production site also this message is shown. I am not sure if this message is coming since there are users with blank email id or so. Please delete blank email id from the database so that I can confim the message functionality. If this is not due to blank email id, then this message need to be removed and provide a validation message like "Please enter Email address".