fix formatting

Author: kentongray

src/directives/formly-field-radio.html

@@ -10,10 +10,10 @@
 				   name="{{id}}"
 				   id="{{id + '_'+ $index}}"
 				   ng-value="option.value"
-                   ng-required="options.required"
+				   ng-required="options.required"
 				   ng-model="$parent.value">
 			{{option.name}}
 		</label>
 	</div>
 
-</div>
+</div>