Changed a bunch of Thread.dumpStack() calls into stack traces properly logged

via the logging system.


git-svn-id: svn+ssh://src.earth.threerings.net/nenya/trunk@788 ed5b42cb-e716-0410-a449-f6a68f950b19

src/java/com/threerings/miso/util/ObjectSet.java

@@ -51,8 +51,7 @@ public class ObjectSet
             // log a warning because the caller shouldn't be doing this
             log.warning("Requested to add an object to a set that already " +
                         "contains such an object [ninfo=" + info +
-                        ", oinfo=" + _objs[ipos] + "].");
-            Thread.dumpStack();
+                        ", oinfo=" + _objs[ipos] + "].", new Exception());
             return false;
         }