Fix NPE in LoggingPlugin.onLoad caused by stupidity.

Fixes issue 3452

Change-Id: I7369f76788de481cbda8dac6e29b9b8d69257743
Reviewed-on: http://gerrit.dmdirc.com/389
Reviewed-by: Gregory Holmes <greboid@dmdirc.com>
Tested-by: Gregory Holmes <greboid@dmdirc.com>

src/com/dmdirc/addons/logging/LoggingPlugin.java

      */
     @Override
     public void onLoad() {
+        setCachedSettings();
+
         final File dir = new File(logDirectory);
         if (dir.exists()) {
             if (!dir.isDirectory()) {
             }
         }
 
-        setCachedSettings();
         IdentityManager.getGlobalConfig().addChangeListener(getDomain(), this);
 
         command = new LoggingCommand();