Fix some typos in comments

Aleksander Machniak

2015-02-04 09d52dbb6716373ded6c116547cc5fcdc84f5487

 program/lib/Roundcube/rcube_plugin_api.php

@@ -397,7 +397,7 @@
            $args = array('arg' => $args);
        }

        // TODO: avoid recusion by checking in_array($hook, $this->exec_stack) ?
        // TODO: avoid recursion by checking in_array($hook, $this->exec_stack) ?

        $args += array('abort' => false);
        array_push($this->exec_stack, $hook);