Fix copy-n-paste errors in the license

src/tar.c

@@ -583,13 +583,13 @@ for complete list of authors.\n"));
     "   the Free Software Foundation; either version 2 of the License, or\n"
     "   (at your option) any later version.\n"
     "\n"
-    "   GNU Mailutils is distributed in the hope that it will be useful,\n"
+    "   GNU tar is distributed in the hope that it will be useful,\n"
     "   but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
     "   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
     "   GNU General Public License for more details.\n"
     "\n"
     "   You should have received a copy of the GNU General Public License\n"
-    "   along with GNU Mailutils; if not, write to the Free Software\n"
+    "   along with GNU tar; if not, write to the Free Software\n"
     "   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA\n\n"));
   exit (0);
 }