Removed a weird character

lib/network/Node.js

@@ -159,7 +159,7 @@ Node.prototype.setProperties = function(properties, constants) {
   }
 
   // copy group properties
-  if (typeof this.options.group === 'number' || (typeof this.options.group === 'string' && this.options.group != '')) {
+  if (typeof this.options.group === 'number' || (typeof this.options.group === 'string' && this.options.group != '')) {
     var groupObj = this.grouplist.get(this.options.group);
     for (var prop in groupObj) {
       if (groupObj.hasOwnProperty(prop)) {