Update FSF license notices to use URL instead of address

src/boot/ostree-remount.service

@@ -11,9 +11,7 @@
 # Lesser General Public License for more details.
 #
 # You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the
-# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-# Boston, MA 02111-1307, USA.
+# License along with this library. If not, see <https://www.gnu.org/licenses/>.
 
 [Unit]
 Description=OSTree Remount OS/ Bind Mounts