[gnote] appdata: Install metadata to non-deprecated location

[Aurimas ÄŚernius <aurimasc src gnome org>]

commit 34e389a036b305a47661a05f05fa571ea4899620
Author: Jeremy Bicha <jbicha ubuntu com>
Date:   Mon Jan 22 15:04:10 2018 -0500

    appdata: Install metadata to non-deprecated location
    
    /usr/share/metainfo/ has been the preferred location for appstream
    metadata since appstream 0.9.4 in 2016
    
    https://www.freedesktop.org/software/appstream/docs/chap-Metadata.html#spec-component-location
    
    https://bugzilla.gnome.org/show_bug.cgi?id=792795

 data/appdata/Makefile.am |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/data/appdata/Makefile.am b/data/appdata/Makefile.am
index f7f9722..e00adf1 100644
--- a/data/appdata/Makefile.am
+++ b/data/appdata/Makefile.am
@@ -4,7 +4,7 @@ app_data_files = $(app_data_in_files:.xml.in=.xml)
 
 @INTLTOOL_XML_RULE@
 
-appdatadir = $(datadir)/appdata
+appdatadir = $(datadir)/metainfo
 appdata_DATA = $(app_data_files)