6732461: broken message file for annotation processing

Summary: Regression in sqe test introduced in 6720185
Reviewed-by: jjg

src/share/classes/com/sun/tools/apt/util/Bark.java

@@ -87,7 +87,7 @@ public class Bark extends Log {
         context.put(barkKey, this);
 
         // register additional resource bundle for APT messages.
-        Messages aptMessages = new Messages(Messages.getDefaultBundle());
+        Messages aptMessages = Messages.instance(context);
         aptMessages.add("com.sun.tools.apt.resources.apt");
         aptDiags = new JCDiagnostic.Factory(aptMessages, "apt");