Update license header in source files.

Use http://www.gnu.org/licenses/ instead of a postal address as
suggested in PR #7.

4 files changed, 4 insertions, 8 deletions

diff --git a/attach.c b/attach.c
index 034e277..41a696c 100644
--- a/attach.c
+++ b/attach.c
@@ -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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 #include "dtach.h"
 
diff --git a/dtach.h b/dtach.h
index d0ba87e..c4d39cb 100644
--- a/dtach.h
+++ b/dtach.h
@@ -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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 #ifndef dtach_h
 #define dtach_h
diff --git a/main.c b/main.c
index 5fd7bcc..9fe78b8 100644
--- a/main.c
+++ b/main.c
@@ -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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 #include "dtach.h"
 
diff --git a/master.c b/master.c
index b136f03..5c053e0 100644
--- a/master.c
+++ b/master.c
@@ -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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 #include "dtach.h"