Updates an active log appender.
void updateActiveLogAppender(String logAppenderID, LogAppenderVO logAppender) throws SUPAdminException;
If successful, returns silently. If unsuccessful, returns SUPAdminException.
supServerLog.refresh();
LogAppenderVO lavo = supServerLog.getActiveLogAppenders().iterator().next();
LogAppenderVO lavo_new = new LogAppenderVO(lavo.getID(), lavo.getType());
Map<String, String> properties = new HashMap<String, String>();
properties.put("async", "true");
lavo_new.setProperties(properties);
supServerLog.updateActiveLogAppender(lavo_new.getID(), lavo_new);
supServerLog.commit();