scripts/git.orderfile: Display meson files along with buildsys ones

Since commit a56650518f ("configure: integrate Meson in the build
system") we replaced many Makefile by Meson files. Adapt the
git.orderfile script to display the new file at the same position.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Message-Id: <20200907161222.41915-1-philmd@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

scripts/git.orderfile

@@ -18,6 +18,7 @@ docs/*
 configure
 Makefile*
 *.mak
+meson.build
 
 # qapi schema
 qapi/*.json