Fine-tuning away behaviour: empty message implies no message.

src/net/java/sip/communicator/impl/protocol/irc/OperationSetPersistentPresenceIrcImpl.java

@@ -339,9 +339,7 @@ public void publishPresenceStatus(final PresenceStatus status,
         if (statusMessage != null && statusMessage.isEmpty())
         {
             // if we provide a message, make sure it isn't empty
-            statusMessage =
+            statusMessage = null;
-                IrcActivator.getResources().getI18NString(
-                    "service.gui.AWAY_STATUS");
         }
         final IrcStack provider = this.parentProvider.getIrcStack();
         if (status.getStatus() >= IrcStatusEnum.AVAILABLE_THRESHOLD)

src/net/java/sip/communicator/impl/protocol/irc/PresenceManager.java

@@ -136,7 +136,7 @@ public void away(final boolean isAway, final String awayMessage)
 
         if (isAway && (!this.away || awayMessage != null))
         {
-            // In case we aren't AWAY yet, or in case the message has changed.
+            // In case we aren't AWAY yet, or if there is a message to set.
             this.irc.rawMessage("AWAY :" + this.submittedMessage);
         }
         else if (isAway != this.away)