[network-manager-applet] meson: install into /usr/share/appdata, not /usr/share/metainfo

[Lubomir Rintel <lkundrak src gnome org>]

commit 7734c464713fc137df0f2d7bbddad2ccb6f4b4c4
Author: Lubomir Rintel <lkundrak v3 sk>
Date:   Mon Oct 16 12:05:05 2017 +0200

    meson: install into /usr/share/appdata, not /usr/share/metainfo
    
    Despite the latter is recommended by the most recent spec, not all the tooling
    seems to have been updated. The autotools build system also uses the old one.
    Let's not switch that inconsistently and revert back to the old path for now.

 meson.build |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/meson.build b/meson.build
index 5d273bd..c020700 100644
--- a/meson.build
+++ b/meson.build
@@ -464,7 +464,7 @@ custom_target(
   output: info,
   command: intltool_xml_cmd,
   install: true,
-  install_dir: join_paths(nma_datadir, 'metainfo')
+  install_dir: join_paths(nma_datadir, 'appdata')
 )
 
 schema_conf = configuration_data()