BETA: Minor typo fix for [8840], thanks FullMetal for report.

	* Closing #5304

L2J_DataPack_BETA/dist/game/data/scripts/handlers/admincommandhandlers/AdminAnnouncements.java

@@ -237,7 +237,7 @@ public class AdminAnnouncements implements IAdminCommandHandler
 				return false;
 			}
 			token = st.nextToken();
-			if (!Util.isDigit(token))
+			if (!token.equals("-1") && !Util.isDigit(token))
 			{
 				activeChar.sendMessage("Not a valid repeat value!");
 				return false;