[gnome-multi-writer] build: install appstream metadata to non-deprecated location

[Jeremy Bicha <jbicha src gnome org>]

commit 0d3664ec8dc97ea68bd6664993af64490d664c03
Author: Jeremy Bicha <jbicha ubuntu com>
Date:   Sun Nov 26 18:33:26 2017 -0500

    build: install appstream metadata to non-deprecated location
    
    https://bugzilla.gnome.org/show_bug.cgi?id=790868

 data/appdata/meson.build |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/data/appdata/meson.build b/data/appdata/meson.build
index c256226..43072c4 100644
--- a/data/appdata/meson.build
+++ b/data/appdata/meson.build
@@ -4,5 +4,5 @@ i18n.merge_file(
   type: 'xml',
   po_dir: join_paths(meson.source_root(), 'po'),
   install: true,
-  install_dir: join_paths(get_option('datadir'), 'appdata')
+  install_dir: join_paths(get_option('datadir'), 'metainfo')
 )