[gnome-continuous] Update Meson

[Emmanuele Bassi <ebassi src gnome org>]

commit 94c2b2d03ea3c0fc2b9970fcb111a5128c021cf4
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Wed Sep 5 16:06:30 2018 +0100

    Update Meson
    
    Bump up to the new stable release, 0.47.2.

 manifest.json | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
---
diff --git a/manifest.json b/manifest.json
index 5dbc5ed..c18a468 100644
--- a/manifest.json
+++ b/manifest.json
@@ -66,7 +66,8 @@
                  "noarch": true},
 
                 {"src": "git:https://github.com/mesonbuild/meson.git";,
-                 "tag": "0.47.1",
+                 "name": "meson",
+                 "tag": "0.47.2",
                  "component": "devel",
                  "patches": ["python-meson-buildsys.patch"]},