[xdg-user-dirs-gtk] Comment invalid <category> in DOAP file to pass git pre-receive hook

[Andre Klapper <aklapper src gnome org>]

commit 1b219d25f9abc30d541a56cc41c48609c7572cdd
Author: Andre Klapper <a9016009 gmx de>
Date:   Sun Dec 16 01:26:42 2018 +0100

    Comment invalid <category> in DOAP file to pass git pre-receive hook

 xdg-user-dirs-gtk.doap | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/xdg-user-dirs-gtk.doap b/xdg-user-dirs-gtk.doap
index 117560d..6b2166f 100644
--- a/xdg-user-dirs-gtk.doap
+++ b/xdg-user-dirs-gtk.doap
@@ -6,7 +6,7 @@
 
   <name xml:lang="en">xdg-user-dirs-gtk</name>
   <shortdesc xml:lang="en">Gtk UI for xdg-user-dirs</shortdesc>
-  <category rdf:resource="http://api.gnome.org/doap-extensions#desktop"; />
+  <!-- <category rdf:resource="http://api.gnome.org/doap-extensions#desktop"; /> -->
 
   <maintainer>
     <foaf:Person>