* src/sdf/module.mk, src/sdf/rules.mk: Fix file names, they were reversed.
* include/freetype/ftmoderr.h (FT_MODERRDEF): Add error definition for the `sdf'
module.
* include/freetype/internal/fttrace.h (FT_TRACE_DEF): Add trace definition for the
`sdf' module.
* modules.cfg (RASTER_MODULES): Add the `sdf' module to the list of rasterizers.