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

[Jeremy Bicha <jbicha src gnome org>]

commit e39d13e7f33836aa9f0b27c117bcf2224bcc0530
Author: Jeremy Bicha <jbicha ubuntu com>
Date:   Wed Nov 8 13:21:14 2017 -0500

    build: Install appstream metadata to non-deprecated location
    
    https://bugzilla.gnome.org/show_bug.cgi?id=790082

 data/Makefile.am |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/data/Makefile.am b/data/Makefile.am
index f4bbc78..41320d0 100644
--- a/data/Makefile.am
+++ b/data/Makefile.am
@@ -7,7 +7,7 @@ gsettings_SCHEMAS = org.gnome.GHex.gschema.xml
 convertdir = $(datadir)/GConf/gsettings
 convert_DATA = ghex.convert
 
-appdatadir = $(datadir)/appdata
+appdatadir = $(datadir)/metainfo
 appdata_DATA = ghex.appdata.xml
 
 EXTRA_DIST =                   \