Fix error in JackPortConnectCallback documentation.

git-svn-id: http://subversion.jackaudio.org/jack/jack2/trunk/jackmp@3238 0c269be4-1314-0410-8aa9-9f06e86f4224

common/jack/types.h

@@ -183,7 +183,7 @@ typedef void (*JackClientRegistrationCallback)(const char* name, int val, void *
 
 /**
  * Prototype for the client supplied function that is called
- * whenever a client is registered or unregistered.
+ * whenever a port is connected or disconnected.
  *
  * @param a one of two ports connected or disconnected
  * @param b one of two ports connected or disconnected