Original commit message from CVS:
Fix another typo in doc string :)
* gst_mixer_list_tracks:
* @mixer: the #GstMixer (a #GstElement) to get the tracks from.
*
- * Returns a list of avialable tracks for this mixer/element. Note
+ * Returns a list of available tracks for this mixer/element. Note
* that it is allowed for sink (output) elements to only provide
* the output tracks in this list. Likewise, for sources (inputs),
* it is allowed to only provide input elements in this list.