That concerns the printf implementations. The point parent poster os making, is that previously, unless set_locale was being called by blender, the resulting e

That concerns the printf implementations. The point parent poster os making, is that previously, unless set_locale was being called by blender, the resulting export of a blender object was locale dependent. The change from sprintf(..) to sprintf(..., NULL), would then actually change the behavior (not just performance) of the program.