[gnome-build-meta/juerg/telepathy-glib] world/telepathy-glib.bst: Add missing gtk-doc dependency

[Jürg Billeter <juergbi src gnome org>]

commit 4442d760791bd571b90bed511150ca0de0310359
Author: Jürg Billeter <j bitron ch>
Date:   Sun Feb 10 09:03:42 2019 +0100

    world/telepathy-glib.bst: Add missing gtk-doc dependency
    
        ./autogen.sh: line 22: gtkdocize: command not found

 elements/world/telepathy-glib.bst | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/elements/world/telepathy-glib.bst b/elements/world/telepathy-glib.bst
index 78870b64..46603ff9 100644
--- a/elements/world/telepathy-glib.bst
+++ b/elements/world/telepathy-glib.bst
@@ -8,6 +8,8 @@ depends:
 - sdk/dbus-glib.bst
 - sdk/glib.bst
 - sdk/gobject-introspection.bst
+- filename: sdk/gtk-doc.bst
+  type: build
 - sdk/vala.bst
 - filename: base.bst
   junction: freedesktop-sdk.bst