Added new line, as per CI error.

Author: Kobus Myburgh

src/RestController.php

@@ -1414,6 +1414,7 @@ public function post($key = null, $xss_clean = null)
             foreach (new RecursiveIteratorIterator(new RecursiveArrayIterator($this->_post_args), RecursiveIteratorIterator::CATCH_GET_CHILD) as $key => $value) {
                 $this->_post_args[$key] = $this->_xss_clean($this->_post_args[$key], $xss_clean);
             }
+
             return $this->_post_args;
         }