Adhere to copyright_address check

to fix "make syntax-check"

Found by http://honk.sigxcpu.org:8001/job/libvirt-syntax-check/

run.in

@@ -13,8 +13,7 @@
 # GNU General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+# along with this program; If not, see <http://www.gnu.org/licenses/>.
 
 #----------------------------------------------------------------------
 #