updated comment to use correct c++ syntax.
updated comment to use correct c++ syntax.

curieos/Slic3r,alexrj/Slic3r,alexrj/Slic3r,pieis2pi/Slic3r,curieos/Slic3r,alexrj/Slic3r,pieis2pi/Slic3r,alexrj/Slic3r,lordofhyphens/Slic3r,lordofhyphens/Slic3r,alexrj/Slic3r,lordofhyphens/Slic3r,lordofhyphens/Slic3r,curieos/Slic3r,curieos/Slic3r,lordofhyphens/Slic3r,pieis2pi/Slic3r,alexrj/Slic3r,pieis2pi/Slic3r,pieis2pi/Slic3r,curieos/Slic3r,pieis2pi/Slic3r,curieos/Slic3r,lordofhyphens/Slic3r