* the update hook
*
* The \a update_audio_file pointer is optional and need not be supplied. In this
- * case it is not neccessary to init this pointer from within init(). If
+ * case it is not necessary to init this pointer from within init(). If
* \a update_audio_file is non-NULL, the function it points to gets called
* whenever a new audio file was successfully loaded and is going to be
* streamed by any of paraslash's senders. The full path of the audio file is