[jhbuild] world: Fix module for gtk+-2

[Rico Tzschichholz <ricotz src gnome org>]

commit 40c83604deadcfa52e8a2e9a2a84bf76cf5b2925
Author: Rico Tzschichholz <ricotz ubuntu com>
Date:   Wed Sep 19 09:19:57 2018 +0200

    world: Fix module for gtk+-2

 modulesets/gnome-world.modules | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/modulesets/gnome-world.modules b/modulesets/gnome-world.modules
index 36c21c0c..a1e080ee 100644
--- a/modulesets/gnome-world.modules
+++ b/modulesets/gnome-world.modules
@@ -3490,7 +3490,7 @@
     <if condition-set="quartz">
       <autogenargs value="--with-backend=quartz"/>
     </if>
-    <branch checkoutdir="gtk+-2" module="gtk+" revision="gtk-2-24"/>
+    <branch checkoutdir="gtk+-2" module="gtk" revision="gtk-2-24"/>
     <dependencies>
       <dep package="glib"/>
       <dep package="cairo"/>