Wrong FSF address in license

[cottsay]

The license headers and COPYING.txt included in this project have an incorrect address for the Free Software Foundation, as detected by the rpmlint utility: https://fedoraproject.org/wiki/Common_Rpmlint_issues#incorrect-fsf-address

An updated copy of the GPLv2 can be found here: https://www.gnu.org/licenses/old-licenses/gpl-2.0.txt

Running the following command changed the headers to a correct address:

find scspell -name '*.py' | xargs sed -i '/You should have received a copy of the GNU General Public License/{
  N
  /You should have received a copy of the GNU General Public License\n.*along with this program; if not, write to the Free Software/{
    N
    s/\(.*\)You should have received a copy of the GNU General Public License\n\(.*\)along with this program; if not, write to the Free Software\n\(.*\)Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA/\1You should have received a copy of the GNU General Public License along\n\2with this program; if not, write to the Free Software Foundation, Inc.,\n\351 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA./
  }
}'