Add a switch to avoid file renaming.

I'm trying to used the "s" scale parameter to export at a reduced resolution, but it appears that the batch exporter generates a new filename with "_@0.5x" appended to the layer name. Is there any way that a switch could be added for it *not* to do this and simply used the name of the layer as the filename? The modified name breaks some import scripts that I'm using in Unity.