Accidently added only an int32 for the size, not an int64.

git-svn-id: file:///srv/svn/repos/haiku/trunk/current@6738 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/apps/diskprobe/DataEditor.cpp

@@ -600,7 +600,7 @@ DataEditor::SendNotices(DataChange *change)
 	// update observer
 	BMessage update;
 	update.AddInt64("offset", offset);
-	update.AddInt32("size", size);
+	update.AddInt64("size", size);
 	SendNotices(kMsgDataEditorUpdate, &update);
 }