[fractal] Remove deprecated positional argument to i18n.merge_file

[Julian Sparber <jsparber src gnome org>]

commit 6fa1a23596d65d94aa889efe725174e6cd2903f0
Author: Jonas Platte <jplatte+git posteo de>
Date:   Sun Oct 31 15:23:31 2021 +0100

    Remove deprecated positional argument to i18n.merge_file
    
    See https://github.com/mesonbuild/meson/issues/9441

 fractal-gtk/res/meson.build | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/fractal-gtk/res/meson.build b/fractal-gtk/res/meson.build
index 7a7a7d65..a176787c 100644
--- a/fractal-gtk/res/meson.build
+++ b/fractal-gtk/res/meson.build
@@ -2,7 +2,7 @@ subdir('icons')
 
 desktop_conf = configuration_data()
 desktop_conf.set('icon', application_id)
-desktop_file = i18n.merge_file ('desktop-file',
+desktop_file = i18n.merge_file (
   type: 'desktop',
   input: configure_file(
     input: files('org.gnome.Fractal.desktop.in.in'),
@@ -28,7 +28,7 @@ endif
 
 metainfo_conf = configuration_data()
 metainfo_conf.set('appid', application_id)
-metainfo_file = i18n.merge_file ('metainfo-file',
+metainfo_file = i18n.merge_file (
   input: configure_file(
     input: files('org.gnome.Fractal.metainfo.xml.in.in'),
     output: 'org.gnome.Fractal.metainfo.xml.in',