[gnome-nettool] build: Use modern metainfo location

[Piotr Drąg <piotrdrag src gnome org>]

commit b678ac029283505fbdb57737c890e3fc554485c1
Author: Piotr Drąg <piotrdrag gmail com>
Date:   Sat Sep 29 01:33:32 2018 +0200

    build: Use modern metainfo location

 data/meson.build | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/data/meson.build b/data/meson.build
index fb0351f..585e6d3 100644
--- a/data/meson.build
+++ b/data/meson.build
@@ -34,7 +34,7 @@ i18n.merge_file('appdata',
                 output: 'gnome-nettool.appdata.xml',
                 po_dir: po_dir,
                 install: true,
-                install_dir: join_paths(prefix, datadir, 'appdata'),
+                install_dir: join_paths(prefix, datadir, 'metainfo'),
 )
 
 install_data('org.gnome.gnome-nettool.gschema.xml', install_dir: schemas_dir)