--- apt.dat	2016-12-08 18:43:50.000000000 +0100
+++ apt.dat-000	2016-12-08 18:56:02.310707492 +0100
@@ -1,5 +1,5 @@
 I
-1000 Version - data cycle 2013.10, build 20131335, metadata AptXP1000.  Copyright © 2013, Robin A. Peel (robin@x-plane.com).   This data is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.  This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details.  You should have received a copy of the GNU General Public License along with this program ("AptNavGNULicence.txt"); if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
+1000 Version - data cycle 2013.10, build 20131335, metadata AptXP1000, further modified by the FlightGear team (cf. <https://sourceforge.net/p/flightgear/fgmeta/ci/next/tree/changes-in-dat-files/apt.dat>).  Copyright © 2013, Robin A. Peel (robin@x-plane.com).   This data is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.  This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details.  You should have received a copy of the GNU General Public License along with this program ("AptNavGNULicence.txt"); if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
 
 
 1       15 1 0 VHXX [X] CLOSED Kai Tak