[dia] flatpak: add intltool for adwaita build

[Zander <zbrown src gnome org>]

commit 7bdc5f971f4f4ca381fd1b7f528f867fc748fddd
Author: Zander Brown <zbrown gnome org>
Date:   Wed Aug 28 13:33:04 2019 +0100

    flatpak: add intltool for adwaita build

 build-aux/flatpak/org.gnome.Dia.json | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)
---
diff --git a/build-aux/flatpak/org.gnome.Dia.json b/build-aux/flatpak/org.gnome.Dia.json
index 3fd00490..84251a69 100644
--- a/build-aux/flatpak/org.gnome.Dia.json
+++ b/build-aux/flatpak/org.gnome.Dia.json
@@ -48,9 +48,11 @@
             },
             "config-opts": [
                 "--disable-dependency-tracking",
+                "--disable-gtk-doc",
                 "--disable-gtk-doc-html",
                 "--disable-introspection",
-                "--with-xinput=xfree"
+                "--with-xinput=xfree",
+                "--disable-glibtest"
             ],
             "sources": [{
                     "type": "archive",
@@ -100,6 +102,16 @@
                 "sha256": "4cf1e5ca4b067a3bed3cdfa658d49ac597d817b2de627a1095214565f862d034"
             }]
         },
+        {
+            "name": "intltool",
+            "sources": [
+                {
+                    "type": "archive",
+                    "url": "https://launchpad.net/intltool/trunk/0.51.0/+download/intltool-0.51.0.tar.gz";,
+                    "md5": "12e517cac2b57a0121cda351570f1e63"
+                }
+            ]
+        },
         {
             "name": "gnome-themes-extra",
             "rm-configure": true,
@@ -193,4 +205,4 @@
             }]
         }
     ]
-}
\ No newline at end of file
+}