updating the FSF addresses in the file headers

[juhp]

There are many references to the old FSF address in the file headers, particularly lisp/*.el.

The current FSF address is "51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA."

ie the text:

;;; You should have received a copy of the GNU General Public License
;;; along with GNU Emacs; see the file COPYING.  If not, write to
;;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.

should be updated to reflect the current address https://www.fsf.org/about/contact/.

I can probably come up with PR for this later if you would prefer that.

It would also be better to include a copy of the GPL COPYING license file.

[tvraman]

I'll fix the address first. Thanks for the heads-up

…

-- Thanks,

--Raman(I Search, I Find, I Misplace, I Research) ♈ Id: kg:/m/0285kf1 🦮