[frogr] build: Fix a copy-paste mistake

[Piotr Drąg <piotrdrag src gnome org>]

commit f1c3932ebf7e8158cc9687cf42e9d68af6a733e3
Author: Piotr Drąg <piotrdrag gmail com>
Date:   Sat Sep 29 01:19:22 2018 +0200

    build: Fix a copy-paste mistake

 data/meson.build | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/data/meson.build b/data/meson.build
index e376a34..edc6f35 100644
--- a/data/meson.build
+++ b/data/meson.build
@@ -39,7 +39,7 @@ i18n.merge_file('desktop',
 
 # Appdata XML file
 appdatadir = join_paths(datadir, 'metainfo')
-i18n.merge_file('desktop',
+i18n.merge_file('appdata',
                 input: 'org.gnome.frogr.appdata.xml.in',
                 output: 'org.gnome.frogr.appdata.xml',
                 install: true,