Merge pull request #1104 from strongloop/feature/remove-trailing-spaces

Remove trailing spaces

lib/persisted-model.js

@@ -143,7 +143,6 @@ PersistedModel.exists = function exists(id, cb) {
  * @callback {Function} callback Callback function called with `(err, instance)` arguments.  Required.
  * @param {Error} err Error object; see [Error object](http://docs.strongloop.com/display/LB/Error+object).
  * @param {Object} instance Model instance matching the specified ID or null if no instance matches.
-
  */
 
 PersistedModel.findById = function find(id, cb) {