Removed trailing whitespace from SConstruct.
Removed trailing whitespace from SConstruct.

lucienfostier/gaffer,ImageEngine/gaffer,johnhaddon/gaffer,andrewkaufman/gaffer,chippey/gaffer,cedriclaunay/gaffer,ivanimanishi/gaffer,ImageEngine/gaffer,boberfly/gaffer,goddardl/gaffer,lucienfostier/gaffer,boberfly/gaffer,chippey/gaffer,ivanimanishi/gaffer,cedriclaunay/gaffer,hradec/gaffer,hradec/gaffer,andrewkaufman/gaffer,lucienfostier/gaffer,GafferHQ/gaffer,appleseedhq/gaffer,andrewkaufman/gaffer,johnhaddon/gaffer,ivanimanishi/gaffer,ivanimanishi/gaffer,boberfly/gaffer,GafferHQ/gaffer,GafferHQ/gaffer,johnhaddon/gaffer,appleseedhq/gaffer,goddardl/gaffer,hradec/gaffer,appleseedhq/gaffer,GafferHQ/gaffer,hradec/gaffer,chippey/gaffer,goddardl/gaffer,GafferHQ/gaffer,ImageEngine/gaffer,chippey/gaffer,johnhaddon/gaffer,andrewkaufman/gaffer,lucienfostier/gaffer,andrewkaufman/gaffer,appleseedhq/gaffer,johnhaddon/gaffer,ImageEngine/gaffer,cedriclaunay/gaffer,cedriclaunay/gaffer,goddardl/gaffer,boberfly/gaffer,hradec/gaffer