[d-feet] build: Install appstream metadata to non-deprecated location

[Thomas Bechtold <toabctl src gnome org>]

commit c92e31f540457c1696e60cfdccd19164f324dc12
Author: Jeremy Bicha <jbicha ubuntu com>
Date:   Sun Nov 26 17:10:35 2017 -0500

    build: Install appstream metadata to non-deprecated location
    
    https://bugzilla.gnome.org/show_bug.cgi?id=790863

 data/Makefile.am |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/data/Makefile.am b/data/Makefile.am
index 98f3e23..4c7e363 100644
--- a/data/Makefile.am
+++ b/data/Makefile.am
@@ -12,7 +12,7 @@ desktop_DATA = $(desktop_in_files:.desktop.in=.desktop)
 UPDATE_DESKTOP = if test -z "$(DESTDIR)"; then update-desktop-database $(datadir)/applications || :; fi
 
 @INTLTOOL_XML_RULE@
-appdatadir = $(datadir)/appdata
+appdatadir = $(datadir)/metainfo
 appdata_DATA = $(appdata_in_files:.xml.in=.xml)
 appdata_in_files = org.gnome.d-feet.appdata.xml.in