Here's the result of running the copyright script on libgfortran/. The script also updates libgfortran/generated, but I checked that that part of the patch is the same as you'd get with the normal --enable-maintainer-mode stuff.
Tested on x86_64-linux-gnu. OK to install? Richard libgfortran/ Update copyright years
auto-copyright-libgfortran.diff.bz2
Description: BZip2 compressed data