[caribou] Add missing BR:python-tools

[Parag Nemade]

commit 0e1624877b4cbd4e2d02cea1adb6ad793433d233
Author: Parag Nemade <pnemade at redhat.com>
Date:   Fri Feb 20 20:32:44 2015 +0530

    Add missing BR:python-tools

 caribou.spec | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/caribou.spec b/caribou.spec
index cb6f217..72c1b37 100644
--- a/caribou.spec
+++ b/caribou.spec
@@ -28,6 +28,7 @@ BuildRequires:  at-spi2-core-devel
 
 %if 0%{?with_python3}
 BuildRequires: python3-devel
+BuildRequires: python-tools
 %endif # with_python3
 
 Requires:       python-%{name} = %{version}-%{release}