[gitg] flatpak: update buildsystem for libpeas dependency to meson

[Alberto Fanjul <albfan src gnome org>]

commit 9cc7b63cc71012b6a20e945ebed6eedf893d1c54
Author: Alberto Fanjul <albertofanjul gmail com>
Date:   Tue Aug 6 23:41:06 2019 +0200

    flatpak: update buildsystem for libpeas dependency to meson

 org.gnome.gitgDevel.json | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/org.gnome.gitgDevel.json b/org.gnome.gitgDevel.json
index bdd09a21..bec28cea 100644
--- a/org.gnome.gitgDevel.json
+++ b/org.gnome.gitgDevel.json
@@ -83,6 +83,8 @@
         },
         {
             "name" : "libpeas",
+            "buildsystem": "meson",
+            "builddir": true,
             "cleanup" : [
                 "/bin/*",
                 "/lib/peas-demo",