[gnome-software] trivial: Fix up the example RPM spec file

[Richard Hughes <rhughes src gnome org>]

commit d1002cfd8821e83341d58fe31d99663cbb4541e1
Author: Richard Hughes <richard hughsie com>
Date:   Tue Sep 3 09:03:07 2013 +0100

    trivial: Fix up the example RPM spec file

 contrib/gnome-software.spec.in |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/contrib/gnome-software.spec.in b/contrib/gnome-software.spec.in
index b3a8a52..cf63224 100644
--- a/contrib/gnome-software.spec.in
+++ b/contrib/gnome-software.spec.in
@@ -13,7 +13,8 @@ Requires:  gnome-icon-theme
 
 BuildRequires: gettext
 BuildRequires: intltool
-BuildRequires: docbook-utils
+BuildRequires: libxslt
+BuildRequires: docbook-style-xsl
 BuildRequires: desktop-file-utils
 BuildRequires: glib2-devel >= 2.25.9-2
 BuildRequires: gtk3-devel >= 3.9.12