Update the Fedora spec file for Star Traders v7.16

Include the new AppStream metadata file in the final package

trader.spec

@@ -12,14 +12,14 @@
 # the GNU General Public License, version 3 or later.
 
 Name:           trader
-Version:        7.15
+Version:        7.16
 Release:        1%{?dist}
 Summary:        Star Traders, a simple game of interstellar trading
 License:        GPLv3+
 Url:            https://www.zap.org.au/projects/trader/
 Source0:        https://ftp.zap.org.au/pub/trader/unix/trader-%{version}.tar.xz
 
-BuildRequires:  gcc make gettext pkgconfig(ncurses) desktop-file-utils gperf
+BuildRequires:  gcc make gettext pkgconfig(ncurses) desktop-file-utils libappstream-glib gperf
 Provides:       bundled(gnulib)
 
 %description
@@ -40,6 +40,7 @@ order to become the wealthiest player (the winner).
 %make_install
 %find_lang %{name}
 desktop-file-validate %{buildroot}%{_datadir}/applications/%{name}.desktop
+appstream-util validate-relax --nonet %{buildroot}%{_metainfodir}/%{name}.appdata.xml
 
 %files -f %{name}.lang
 %doc README NEWS
@@ -48,8 +49,13 @@ desktop-file-validate %{buildroot}%{_datadir}/applications/%{name}.desktop
 %{_mandir}/man6/%{name}.6*
 %{_datadir}/applications/%{name}.desktop
 %{_datadir}/icons/hicolor/*/apps/%{name}.*
+%{_metainfodir}/%{name}.appdata.xml
 
 %changelog
+* Wed Jan 20 2021 John Zaitseff <J.Zaitseff@zap.org.au> - 7.16-1
+- Updated the RPM package for a new release of Star Traders: version 7.16.
+- Added an AppStream-conforming metadata file.
+
 * Tue Jan 12 2021 John Zaitseff <J.Zaitseff@zap.org.au> - 7.15-1
 - Updated the RPM package for a new release of Star Traders: version 7.15.
 - Added a dependency on make, as per current packaging guidelines.