[gtk-osx] Drop gtk+-3.0 back to 3.22.29.

[John Ralls <jralls src gnome org>]

commit ec66454dfa102467576131702c006f7fabf8736a
Author: John Ralls <jralls ceridwen us>
Date:   Thu May 31 16:39:11 2018 -0700

    Drop gtk+-3.0 back to 3.22.29.
    
    3.22.30 gtk/gtkmarshalers.c fails to introspect because of a missing gtk_marshal_BOOLEAN__BOXED_BOXED.

 modulesets-stable/gtk-osx.modules | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/modulesets-stable/gtk-osx.modules b/modulesets-stable/gtk-osx.modules
index 9797f9a..9df3b59 100644
--- a/modulesets-stable/gtk-osx.modules
+++ b/modulesets-stable/gtk-osx.modules
@@ -222,8 +222,8 @@
 
   <autotools id="gtk+-3.0" autogen-sh="autogen.sh"
              autogenargs="--enable-quartz-backend --enable-quartz-relocation">
-    <branch module="gtk+/3.22/gtk+-3.22.30.tar.xz" version="3.22.30"
-            hash="sha256:a1a4a5c12703d4e1ccda28333b87ff462741dc365131fbc94c218ae81d9a6567">
+    <branch module="gtk+/3.22/gtk+-3.22.29.tar.xz" version="3.22.29"
+            hash="sha256:a07d64b939fcc034a066b7723fdf9b24e92c9cfb6a8497593f3471fe56fbbbf8">
     </branch>
     <dependencies>
       <dep package="glib"/>