Fix whitespace

IPython/html/static/widgets/js/widget_link.js

@@ -1,87 +1,86 b''
 // Copyright (c) IPython Development Team.
 // Distributed under the terms of the Modified BSD License.
 
 define([
     "widgets/js/widget",
     "jquery",
 ], function(widget, $){
     var LinkModel = widget.WidgetModel.extend({
         initialize: function() {
             this.on("change:widgets", function(model, value, options) {
                 this.update_bindings(model.previous("widgets") || [], value);
 				this.update_value(this.get("widgets")[0]);
             }, this);
 	        this.on("destroy", function(model, collection, options) {
                 this.update_bindings(this.get("widgets"), []);
             }, this);
         },
         update_bindings: function(oldlist, newlist) {
             var that = this;
             _.each(oldlist, function(elt) {elt[0].off("change:" + elt[1], null, that);});
             _.each(newlist, function(elt) {elt[0].on("change:" + elt[1],
 						     function(model, value, options) {
 							     that.update_value(elt);
 						     }, that);
 					   // TODO: register for any destruction handlers
 					   // to take an item out of the list
 					  });
         },
         update_value: function(elt) {
             if (this.updating) {return;}
             var model = elt[0];
             var attr = elt[1];
             var new_value = model.get(attr);
             this.updating = true;
             _.each(_.without(this.get("widgets"), elt),
                    function(element, index, list) {
 						if (element[0]) {
 							element[0].set(element[1], new_value);
 							element[0].save_changes();
 						}
                    }, this);
             this.updating = false;
         },
     });
 
     var DirectionalLinkModel = widget.WidgetModel.extend({
         initialize: function() {
             this.on("change", this.update_bindings, this);
             this.on("destroy", function() {
                 if (this.source) {
                     this.source[0].off("change:" + this.source[1], null, this);
                 }
             }, this);
         },
         update_bindings: function() {
             if (this.source) {
                 this.source[0].off("change:" + this.source[1], null, this);
             }
             this.source = this.get("source");
 			if (this.source) {
                 this.source[0].on("change:" + this.source[1], function() { this.update_value(this.source); }, this);
                 this.update_value(this.source);
             }
         },
         update_value: function(elt) {
             if (this.updating) {return;}
             var model = elt[0];
             var attr = elt[1];
             var new_value = model.get(attr);
             this.updating = true;
             _.each(this.get("targets"),
                    function(element, index, list) {
 						if (element[0]) {
 							element[0].set(element[1], new_value);
 							element[0].save_changes();
                         }
                    }, this);
             this.updating = false;
         },
     });
 
-
     return {
         "LinkModel": LinkModel,
         "DirectionalLinkModel": DirectionalLinkModel,
     }
 });