[gnome-continuous] Update the config-opts for Orc

[Emmanuele Bassi <ebassi src gnome org>]

commit 620dbfde295591bcd87f8322eb51de477116f9e4
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Wed Nov 29 21:27:51 2017 +0000

    Update the config-opts for Orc
    
    We're using the Meson build.

 manifest.json |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/manifest.json b/manifest.json
index 7e7d97b..b6ca765 100644
--- a/manifest.json
+++ b/manifest.json
@@ -700,7 +700,7 @@
                 "tag-reason": "We need to add meta-rust to our yocto image"},
 
                {"src": "fd-gstreamer:orc",
-                "config-opts": ["--disable-gtk-doc"]},
+                "config-opts": ["-Ddisable_gtkdoc=true"]},
 
                {"src": "fd-gstreamer:gstreamer",
                  "config-opts": ["-Denable-gtk-doc=false"]},