[gnome-continuous] libnotify: disable gtkdoc

[Jeremy Bicha <jbicha src gnome org>]

commit 60fd321c208f767db9acce06e8d0d99f94dd2b42
Author: Jeremy Bicha <jbicha ubuntu com>
Date:   Thu Jan 31 12:48:02 2019 -0500

    libnotify: disable gtkdoc
    
    try to fix GNOME Continuous

 manifest.json | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
---
diff --git a/manifest.json b/manifest.json
index f559735..9c39fcb 100644
--- a/manifest.json
+++ b/manifest.json
@@ -731,7 +731,8 @@
                                 "-Ddocumentation=false"]},
 
                {"src": "gnome:libnotify.git",
-                 "name": "libnotify"},
+                 "name": "libnotify",
+                "config-opts": ["-Dgtk_doc=false"},
 
                {"src": "fd-spice:linux/vd_agent",
                 "patches": ["vdagent-autogen.patch"],