https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60330
--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> --- https://www.gnu.org/prep/maintain/maintain.html#Copyright-Notices "You should maintain a proper copyright notice and a license notice in each nontrivial file in the package. (Any file more than ten lines long is nontrivial for this purpose.)" So there's no need on this file.
