[sysadmin-bin] make it compile

[Olav Vitters <ovitters src gnome org>]

commit 40c14bae7b1f6b34a0d77b2aa8348bd2a4a5d5e0
Author: Olav Vitters <olav vitters nl>
Date:   Thu Jul 31 04:58:03 2014 +0200

    make it compile

 git/extract-doap-info |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/git/extract-doap-info b/git/extract-doap-info
index c793b91..e405a65 100755
--- a/git/extract-doap-info
+++ b/git/extract-doap-info
@@ -56,7 +56,7 @@ for node in nodes:
     fd.close()
 
     fd = open(os.path.join(git_dir, 'programming-languages'), 'w')
-    fd.write("\n".join(node.find_property((DOAP, 'programming-language'))))
+    fd.write("\n".join(node.find_properties((DOAP, 'programming-language'))))
     fd.close()
 
     break