[NetworkManager-pptp] Use /usr/share/metainfo for AppData files

[Thomas Haller <thaller src gnome org>]

commit a06fc1c962abd47371574743c764d83f3d7636cd
Author: Michael Biebl <biebl debian org>
Date:   Tue May 5 14:06:20 2020 +0200

    Use /usr/share/metainfo for AppData files
    
    See-also: https://wiki.debian.org/AppStream/Guidelines
    
    https://bugzilla.gnome.org/show_bug.cgi?id=796945
    https://gitlab.gnome.org/GNOME/NetworkManager-pptp/-/issues/1
    
    https://gitlab.gnome.org/GNOME/NetworkManager-pptp/-/merge_requests/8

 Makefile.am | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/Makefile.am b/Makefile.am
index f3df202..1664304 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -269,7 +269,7 @@ uninstall-hook:
         rm -f $(DESTDIR)$(sysconfdir)/NetworkManager/VPN/nm-pptp-service.name
 endif
 
-appdatadir = $(datadir)/appdata
+appdatadir = $(datadir)/metainfo
 appdata_files = $(appdata_in_files:.xml.in=.xml)
 if WITH_GNOME
 appdata_DATA = $(appdata_files)