[gtkmm] doap: add <programming-language>

[Andre Klapper <aklapper src gnome org>]

commit dd17c68168f44d7ec96479d6dbd76cc13735bb69
Author: Andre Klapper <a9016009 gmx de>
Date:   Fri Aug 1 23:34:32 2014 +0200

    doap: add <programming-language>

 gtkmm.doap |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/gtkmm.doap b/gtkmm.doap
index e9944d1..afb71ae 100644
--- a/gtkmm.doap
+++ b/gtkmm.doap
@@ -9,6 +9,7 @@
   <homepage rdf:resource="http://www.gtkmm.org/"; />
   <mailing-list rdf:resource="mailto:gtkmm-list gnome org" />
   <category rdf:resource="http://api.gnome.org/doap-extensions#core"; />
+  <programming-language>C++</programming-language>
 
   <maintainer>
     <foaf:Person>