removed typo in lwjglCanvas preventing the engine to build

git-svn-id: https://jmonkeyengine.googlecode.com/svn/trunk@9022 75d07b2b-3a1a-0410-a2c5-0572b91ccdca

engine/src/lwjgl/com/jme3/system/lwjgl/LwjglCanvas.java

@@ -1,4 +1,4 @@
-F/*
+/*
  * Copyright (c) 2009-2010 jMonkeyEngine
  * All rights reserved.
  *