Workaround for build crash on jenkins redirected shell

helpers/make-dpkg

 #!/bin/sh
 #
-#    Copyright (C) 2012  Rubén Rodríguez <ruben@trisquel.info>
+#    Copyright (C) 2012-2015  Ruben Rodriguez <ruben@trisquel.info>
 #
 #    This program is free software; you can redistribute it and/or modify
 #    it under the terms of the GNU General Public License as published by
@@ -17,7 +17,7 @@
 #    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
 #
 
-VERSION=1
+VERSION=2
 #FAKEROOT=true
 COMPONENT=main
 
@@ -58,6 +58,7 @@ EOF
 
 cp $DATA/Trisquel.pm scripts/Dpkg/Vendor/Trisquel.pm
 
+sed 's/>$log_file/|tee $log_file/' -i ./build-aux/test-driver
 
 changelog "Compiled for Trisquel"