addon/validator.js
function() {
		const message = this.get('message');
		const label = this.get('attributeLabel');

		Ember.assert('Message must be defined for this Validator', Ember.isPresent(message));

		const args = Array.prototype.slice.call(arguments);

		args.unshift(label);
		args.unshift(message);

		return format.apply(null, args);
	}
function() {
		const message = this.get('message');
		const label = this.get('attributeLabel');

		Ember.assert('Message must be defined for this Validator', Ember.isPresent(message));

		const args = Array.prototype.slice.call(arguments);

		args.unshift(label);
		args.unshift(message);

		return format.apply(null, args);
	}
function ( ) { const message = this . get ( 'message' ) ; const label = this . get ( 'attributeLabel' ) ; Ember . assert ( 'Message must be defined for this Validator' , Ember . isPresent ( message ) ) ; const args = Array . prototype . slice . call ( arguments ) ; args . unshift ( label ) ; args . unshift ( message ) ; return format . apply ( null , args ) ; }
Formats the validation error message.

All arguments passed to this function would be used by the
`Ember.String.fmt` method to format the message.

@method format
@return {String}
Formats the validation error message .