Minor javadoc change.

irc/src/com/dmdirc/parser/irc/events/IRCDataOutEvent.java

@@ -32,6 +32,8 @@ import static com.google.common.base.Preconditions.checkNotNull;
 
 /**
  * Called on every outgoing line BEFORE being sent.
+ *
+ * This extends the standard DataOutEvent to also pre-tokenise the data.
  */
 public class IRCDataOutEvent extends DataOutEvent {