[gnome-builder] flatpak: add back uncrustify

[Christian Hergert <chergert src gnome org>]

commit 000a69b9f480b46045a540a63f0060e3368af569
Author: Christian Hergert <chergert redhat com>
Date:   Mon Aug 13 14:10:03 2018 -0700

    flatpak: add back uncrustify

 build-aux/flatpak/org.gnome.Builder.json | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
---
diff --git a/build-aux/flatpak/org.gnome.Builder.json b/build-aux/flatpak/org.gnome.Builder.json
index eb6859546..87fa28523 100644
--- a/build-aux/flatpak/org.gnome.Builder.json
+++ b/build-aux/flatpak/org.gnome.Builder.json
@@ -88,6 +88,21 @@
                 }
             ]
         },
+        {
+            "name" : "uncrustify",
+            "buildsystem" : "cmake-ninja",
+            "config-opts" : [
+                "-DCMAKE_BUILD_TYPE=Release"
+            ],
+            "builddir" : true,
+            "sources" : [
+                {
+                    "type" : "archive",
+                    "url" : "https://github.com/uncrustify/uncrustify/archive/uncrustify-0.66.1.tar.gz";,
+                    "sha256" : "0862778fb692ce9859f4ece5e801db72841d8d76d9304e2da52bdd098b05331f"
+                }
+            ]
+        },
         {
             "name" : "libfuse",
             "config-opts" : [